US Pat. No. 9,187,271

FACE PANELS FOR LOADING DOCK SEALS AND SHELTERS

RITE-HITE HOLDING CORPORA...

1. A seal assembly for sealing against a vehicle at a loading dock, wherein the loading dock includes a wall with a doorway,
the seal assembly comprising:
a projection panel mountable to extend outward from the wall in proximity with the doorway;
a first face panel to extend from the projection panel in front of the doorway when the projection panel is mounted to the
wall, the first face panel having a first distal edge spaced apart from the projection panel and a first proximate edge diredtly
attached to the projection panel; and

a second face panel to extend from the projection panel in front of the doorway when the projection panel is mounted to the
wall, the second face panel having a second distal edge spaced apart from the projection panel and a second proximate edge
directly attached to the projection panel, the first distal edge to project a first distance from the projection panel and
the second distal edge to project a second distance from the projection panel, the first distance being greater than the second
distance, and the first and second face panels to sealingly engage a vertical side surface of the vehicle when the vehicle
is in engagement with the seal assembly.

US Pat. No. 9,901,011

COOLING SYSTEMS FOR DEVICES ARRANGED IN ROWS

RITE-HITE HOLDING CORPORA...

10. A cooling system comprising:
an inflatable air duct to be disposed within a gap between an overhead surface of a building and a top surface associated
with a row of devices interposed between a first aisle of the building and a second aisle of the building, the first and second
aisles to be in fluid communication across the gap, the devices emitting heat to a surrounding area during operation, the
row of devices defining an air passageway below the gap to place the first aisle in fluid communication with the second aisle,
the inflatable air duct having selectively an inflated state and a deflated state, the inflatable air duct substantially blocks
dispersion of gas within the building across the gap between the first and second aisles when the inflatable air duct is in
the inflated state and enables dispersion of gas across the gap when the inflatable air duct is in the deflated state; and

a blower to be connected in fluid communication with the inflatable air duct, the blower to force a current of air sequentially
from the second aisle, lengthwise through the inflatable air duct, and downward from the inflatable air duct into the first
aisle.

US Pat. No. 9,255,699

MOTION SENSING DOCK LIGHTING SYSTEMS

RITE-HITE HOLDING CORPORA...

15. A lighting system method, comprising:
projecting a light output from a lamp;
sensing a body moving relative to the lamp;
determining whether the body is moving closer to or farther away from the lamp;
adjusting the light output depending on whether the body is moving closer to or farther away from the lamp; and
aiming the light output higher when the body is moving farther away from the lamp than when the body is moving closer to the
lamp.

US Pat. No. 9,193,543

LOADING DOCK WEATHER BARRIER APPARATUS

RITE-HITE HOLDING CORPORA...

1. A weather barrier apparatus for at least one of sealing or sheltering a portion of a vehicle parked at a loading dock of
a building that has a doorway in a wall, the weather barrier apparatus comprising:
an upper support member having a distal end and proximal end, the proximal end to be coupled to the wall above the doorway;
a swing arm comprising an upper end and a lower end, the upper end being pivotally coupled to the distal end of the upper
support member about an upper pivot point, the lower end of the swing arm being unattached to the wall and suspended from
the upper support member to enable the lower end to pivot relative to the upper pivot point, the lower end to pivot about
the upper pivot point in a direction toward the doorway of the wall in response to the vehicle engaging the swing arm and
moving toward the doorway, the lower end to pivot about the upper pivot point in a direction away from the wall in response
to the vehicle moving in a direction away from the doorway; and

a seal member coupled to a lower pivot point on the lower end of the swing arm, the seal member being pivotal about the lower
pivot point, wherein the lower pivot point is to be closer to the upper pivot point when the weather barrier apparatus is
in a relaxed configuration than when the weather barrier apparatus is in an activated configuration.

US Pat. No. 9,273,512

FACE PANELS FOR LOADING DOCK SEALS AND SHELTERS

RITE-HITE HOLDING CORPORA...

1. A seal assembly to seal against a vehicle at a loading dock, the loading dock including a wall with a doorway, the seal
assembly comprising:
a face panel to be coupled to a projection panel, the face panel comprising a front side, a back side and an edge spaced apart
from the projection panel;

a bulb positioned adjacent the edge of the face panel; and
a seal flap having a first portion and a second portion, the first portion of the seal flap to attach to an outer surface
of the bulb to define a pivot axis, the second portion being free to pivot relative to the first portion about the pivot axis,
the second portion of the seal flap to project from the outer surface of the bulb and away from the doorway of the loading
dock toward the vehicle when the seal flap is not engaged by the vehicle, the bulb being positioned closer to the doorway
than an end of the second portion of the seal flap when the seal assembly is coupled to the wall of the loading dock and not
engaged by the vehicle, the seal flap to sealingly engage a side surface of the vehicle when the vehicle is in engagement
with the seal flap.

US Pat. No. 9,481,531

MONITORING VEHICLE RESTRAINTS OVER A CONTINUOUS RANGE OF POSITIONS

RITE-HITE HOLDING CORPORA...

1. A vehicle restraint to selectively block and release a vehicle at a dock, the vehicle restraint comprising:
a main body proximate the dock;
a vehicle restraint drive unit;
a barrier coupled to the vehicle restraint drive unit and to the main body, the barrier being movable by the vehicle restraint
drive unit relative to the main body between a fully extended position, a fully retracted position, and a plurality of intermediate
positions between the fully extended position and the fully retracted position, the barrier providing a more prominent obstruction
to the vehicle when the barrier is in the fully extended position than when the barrier is in the fully retracted position;

a sensor to provide a plurality of position feedback signals indicating a plurality of sensed positions of the barrier along
the plurality of intermediate positions;

a controller to:
receive the position feedback signals;
store historical data based at least partially on the position feedback signals;
perform a plurality of comparisons of the position feedback signals with a stored reference; and
generate an output signal based the comparisons, the output signal to vary based on the plurality of comparisons, the vehicle
restraint drive unit being responsive to the output.

US Pat. No. 9,170,044

FROST INHIBITING JOINTS FOR INSULATED PANELS AND CURTAINS

RITE-HITE HOLDING CORPORA...

1. A panel assembly comprising:
a first panel defining a first vertical edge;
a second panel defining a second vertical edge, the first panel positionable adjacent the second panel such that the first
vertical edge is adjacent the second vertical edge;

a seal having a first loop directly touching an outer surface of the first panel and a second loop directly touching an outer
surface of the second panel to restrict airflow between the first and second vertical edges of the respective first and second
panels;

a first touch-and-hold fastener to attach the seal to the first panel; and
a second touch-and-hold fastener to attach the seal to the second panel.

US Pat. No. 9,139,384

TRACK-MOUNTED WHEEL RESTRAINT SYSTEMS

RITE-HITE HOLDING CORPORA...

36. A wheel restraint method comprising:
manually moving a carrier along a track, the carrier having a wheel-blocking barrier;
moving a carrier catch from a release position to a holding position, the carrier catch to restrict movement of the carrier
along the track when the carrier catch is in the holding position;

moving a barrier catch from a second position to a first position, the barrier catch to limit movement of the wheel-blocking
barrier when the barrier catch is in the first position; and

providing a barrier catch signal to indicate that the barrier catch is in the first position, in response to sensing the barrier
catch is in the first position.

US Pat. No. 9,096,170

LIGHT FIXTURES FOR DOORWAYS AND OTHER AREAS

RITE-HITE HOLDING CORPORA...

1. A light fixture comprising:
a housing to be coupled in a corner of a doorway;
a rod coupled to the housing, the rod comprising a light transmitting material, the rod includes a proximal end, a distal
end, a length extending between the proximal end and the distal end, a cavity in the proximal end, and a plurality of notches
distributed along the length of the rod, the rod having an outer annular-shaped longitudinal surface that includes therein
an integral flat portion recessed into the annular-shaped longitudinal surface and adjacent the proximal end of the rod to
engage another portion of the housing to properly orient angularly the plurality of notches of the rod in only one direction
relative to the housing when the rod is coupled to the housing, the rod having a self-supported distal end and is cantilevered
from the housing to project along at least a portion of a horizontal perimeter of the doorway; and

a light source disposed in the cavity of the proximal end of the rod to emit light through the length of the rod and toward
the distal end of the rod, the plurality of notches to deflect light emitted through the rod to provide a corresponding plurality
of light images that are separated by a plurality of darker areas along the length of the rod, the light images having a relatively
greater intensity than an intensity of light provided by the darker areas of the rod such that the separated light images
are visually discernable from each other due to the plurality of darker areas.

US Pat. No. 9,079,713

HEAD CURTAINS FOR DOCK SHELTERS OR DOCK SEALS

RITE-HITE HOLDING CORPORA...

1. A dock apparatus subject to a penetrating force exerted by an upper edge of a vehicle parked at a doorway of a wall, the
dock apparatus comprising:
a support panel being horizontally elongate and extending lengthwise along a width of the doorway when a proximal edge of
the support panel is mounted above the doorway in proximity with the wall while a distal edge of the support panel extends
away from the wall; and

a header to be suspended from the support panel and configured to be engaged by the vehicle, the header having a front face
oriented away from the wall and toward the vehicle, the front face having an inner central region within an outer peripheral
region such that the outer peripheral region surrounds the inner central region, the inner central region having pleats to
provide a greater penetrating force tolerance than that of the outer peripheral region, the pleats to extend between respective
side seals adjacent the doorway such that first and second ends of the pleats are positioned between and spaced from inner
lateral edges of respective side seals, the side seals being non-parallel relative to the header, the pleats to sealingly
engage a central portion of the upper surface of the vehicle positioned between the side seals when the vehicle engages the
header.

US Pat. No. 9,388,634

POWERED SAFETY CURTAINS

RITE-HITE HOLDING CORPORA...

1. A barrier for an opening, the barrier comprising:
a motorized drive unit;
a curtain suspended from the motorized drive unit, the curtain including a leading edge and a lateral edge, the leading edge
of the curtain being selectively moveable to a closed position where the curtain obstructs the opening and to an open position
where the curtain uncovers the opening;

a track disposed along the lateral edge of the curtain;
a guide plate carried by the curtain to extend into the track;
a nonferrous guide member attached to the guide plate;
a tapered lead-in surface in a substantially fixed relationship with the track, the nonferrous guide member having a beveled
shape substantially complementary to a shape of the tapered lead-in surface such that the guide member is to rest upon and
be supported by the tapered lead-in surface when the leading edge of the curtain is in the closed position, and the nonferrous
guide member being spaced apart from the tapered lead-in surface when the leading edge of the curtain is in the open position;
and

a first safety device including a first wireless portion and a first electrical portion, the first wireless portion being
attached to the nonferrous guide member, the first electrical portion being mounted at a first substantially fixed position
relative to the track, the first electrical portion having a first activated state and a first deactivated state, the first
electrical portion being in the first activated state when the first wireless portion is in proximity with the first electrical
portion as a result of the leading edge of the curtain being at the closed position, the first wireless portion being in the
first deactivated state when the first wireless portion is remote relative to the first electrical portion as a result of
the leading edge of the curtain not being in the closed position, the tapered lead-in surface to hold the nonferrous guide
member in a position to vertically and horizontally align the first wireless portion with the first electrical portion.

US Pat. No. 9,309,717

POWERED SAFETY CURTAINS

RITE-HITE HOLDING CORPORA...

1. A safety barrier assembly to control access to equipment, comprising:
a track;
a harrier to be moveable within the track between an open position and a closed position, the open position enabling access
to the equipment, the closed position substantially preventing access to the equipment;

guide members to be mounted to the barrier, the guide members to be retained entirely within the track to guide the movement
of the barrier, the guide members including a receptacle;

a sensor to trigger a signal that identifies when the barrier is in the closed position;
a lock including a portion to the extended into the receptacle in response to the signal, an interaction between the portion
and the receptacle to prevent the barrier from moving out of the closed position; and

a controller responsive to feedback indicating the equipment is in a safe state to cause the barrier to move from the closed
position to the open position.

US Pat. No. 9,227,799

VEHICLE RESTRAINTS WITH ANTI-ROTATION FEATURES

RITE-HITE HOLDING CORPORA...

1. A vehicle restraint to engage a RIG (rear impact guard) of a vehicle at a loading dock, the vehicle restraint comprising:
a main body mountable at the loading dock;
a barrier coupled to the main body and movable relative thereto, the barrier being movable between an upper blocking position
to block the RIG, a stored position to release the RIG, and an intermediate blocking position that is higher than the stored
position and lower than the upper blocking position;

a brace coupled to the main body, the brace to move relative to the main body and the barrier between a supporting position
and a release position, the supporting position corresponding to the intermediate position of the barrier, the brace to engage
the barrier when the barrier is in the intermediate position to prevent the barrier from rotating toward the stored position,
and the brace to disengage the barrier when the barrier is between the intermediate position and the upper blocking position;
and

an actuator directly coupled to the barrier at a first connection point and directly coupled to the brace at a second connection
point, the first connection point being spaced apart from the second connection point, movement of the barrier being at least
sometimes powered by the actuator, and movement of the brace being at least sometimes powered by the actuator.

US Pat. No. 9,222,304

SYSTEMS AND METHODS TO RETAIN AND REFEED DOOR CURTAINS

RITE-HITE HOLDING CORPORA...

1. A door for selectively blocking and unblocking a doorway of a wall, the door comprising:
a first track;
a second track;
a retainer to be borne by the first track;
an alignment guide associated with the first track, the alignment guide to be positioned above the retainer;
a curtain to extend laterally between the first track and the second track, the curtain having a leading edge selectively
movable between a closed position and an open position, the door blocking the doorway when the leading edge is at the closed
position, the door unblocking the doorway when the leading edge is at the open position, the curtain being selectively movable
between a breakaway state and a normal state;

a primary projection to be borne by the curtain, the primary projection to be in guiding engagement with the retainer within
the first track when the leading edge is at the closed position while the curtain is in the normal state, the primary projection
to be dislodged from the first track when the curtain is in the breakaway state; and

a secondary projection to be borne by the curtain, the secondary projection arranged to travel outside of the alignment guide
when the leading edge is traveling between the open position and the closed position while the curtain is in the normal state,
wherein the secondary projection is confined laterally by the alignment guide when the leading edge is at the open position
while the curtain is in the normal state.

US Pat. No. 9,162,832

VEHICLE-ACTUATED WEATHER BARRIER APPARATUS

RITE-HITE HOLDING CORPORA...

1. A weather barrier apparatus for at least one of sealing or sheltering a vehicle parked at a loading dock of a building
that has a doorway in a wall defining a cargo passageway, the weather barrier apparatus being in an activated configuration
when the vehicle is in a parked position and a relaxed configuration when the vehicle is in a departed position, the weather
barrier apparatus comprising:
a side structure attached to the wall and positioned alongside the doorway, the side structure being generally vertically
elongate and having a first side seal and a second side seal, the first side seal defining an upper seal of the side structure
and the second side seal defining a lower seal of the side structure, the first side seal to slide relative to the second
side seal to adjust a variable overall height of the side structure, the variable overall height being significantly greater
in the activated configuration than in the relaxed configuration, the side structure extending laterally farther into the
cargo passageway toward a center of the doorway in the relaxed configuration than in the activated configuration.

US Pat. No. 9,096,397

DOWNWARDLY INSERTABLE VEHICLE RESTRAINTS

RITE-HITE HOLDING CORPORA...

7. A vehicle restraint comprising:
a deck installable at a loading dock, the deck having a front-end portion to bridge a gap between a vehicle bed and a platform
of the loading dock when a vehicle is parked at the loading dock; and

a blocking member selectively attachable to the front-end portion of the deck when the front-end portion of the deck is positioned
on the vehicle bed, the blocking member to be positioned in a travel path defined by at least the front-end portion of the
deck without interfering with at least one of personnel or material handling equipment traversing over the front-end portion,
the blocking member to selectively engage a restraint feature of the vehicle bed to restrict forward movement of the vehicle
relative to the loading dock and prevent separation of the front-end portion from the vehicle bed, and the blocking member
to selectively disengage the restraint feature of the vehicle bed to allow separation of the front-end portion from the vehicle
bed and enable forward movement of the vehicle relative to the loading dock.

US Pat. No. 9,944,474

ADJUSTABLE LATERAL SEALS FOR DOCK WEATHER BARRIERS

Rite-Hite Holding Corpora...

1. A weather barrier comprising:a header structure to couple to a wall of a loading dock, the header structure being horizontally elongate, extending above a doorway of the wall and protruding in a forward direction from the wall, the header structure including upper support structure to mount to the wall of the loading dock;
a lateral seal to couple to the wall, the lateral seal being vertically elongate and extending below the upper support structure of the header structure, an upper edge of the lateral seal to move relative to the upper support structure, the lateral seal including an upper seal segment and a lower seal segment, the upper seal segment to move between a lowered position and a raised position relative to the lower seal segment, the upper seal segment defining at least a portion of an uppermost edge of the lateral seal when the upper edge segment is in the raised position; and
a flexible elongate member having an upper end to couple to the header structure and a lower end coupled to the upper seal segment, the flexible elongate member to deflect from a relaxed position to a deflected position, the upper seal segment to move from the lowered position to the raised position in response to the flexible elongate member deflecting from the relaxed position to the deflected position.

US Pat. No. 9,303,892

INFLATABLE AIR DUCTS WITH LOW HEIGHT-TO-WIDTH RATIOS

RITE-HITE HOLDING CORPORA...

17. An air duct system for conveying a current of air, the air duct system comprising:
a top sheet;
a bottom sheet underneath the top sheet;
a first side sheet extending between the top sheet and the bottom sheet;
a second side sheet spaced apart from the first side sheet and extending between the top sheet and the bottom sheet; the top
sheet, the bottom sheet, the first side sheet and the second side sheet providing an inflatable air duct having an inflated
state and a deflated state, the inflatable air duct defining an interior and an exterior, the inflatable air duct having an
inflated length extending in a longitudinal direction, an inflated width extending in a lateral direction perpendicular to
the longitudinal direction, and an inflated height extending perpendicular to both the longitudinal direction and the lateral
direction;
the inflated length extending between a first end and a second end of the inflatable air duct, the inflated length being greater
than the inflated width, and the inflated width being more than twice as great as the inflated height;
an air passageway to convey the current of air in the longitudinal direction between the first end and the second end, the
air passageway being within the interior of the inflatable air duct, the air passageway being defined by the top sheet, the
bottom sheet, the first side sheet and the second side sheet, the air passageway being greater in volume when the inflatable
air duct is in the inflated state than when the inflatable air duct is in the deflated state, the air passageway including
a first airway along the first side sheet, a second airway along the second side sheet, and an intermediate airway between
the first airway and the second airway, the intermediate airway being adjacent the first airway at a first transition area;

a first restraint to connect the top sheet to the bottom sheet in the first transition area;
a second restraint to connect the top sheet to the bottom sheet in a second transition area; and
an inflatable manifold connected to the inflatable air duct, the inflatable manifold defining a first opening and a second
opening, the first opening having a perimeter at least forty percent larger than that of the second opening, the first opening
adjacent the first end of the inflatable air duct, thereby placing the inflatable manifold in fluid communication with the
inflatable air duct.

US Pat. No. 9,284,135

SAFETY SYSTEMS FOR VERTICALLY STORING DOCK LEVELERS

RITE-HITE HOLDING CORPORA...

1. A method for monitoring a sensed region of a pit floor of a dock leveler, the method comprising:
positioning a first sensor adjacent a first rear corner of the pit floor and a second sensor adjacent a second rear corner
of the pit floor;

receiving a command to move a deck of the dock leveler from a stored upright position toward a range of operative positions;
monitoring the sensed region of the pit floor via the first sensor and the second sensor, where the first sensor is positioned
relative to the second sensor such that at least a portion of a first sensing area monitored by the first sensor overlaps
at least a portion of a second sensing area monitored by the second sensor, wherein monitoring the sensed region includes
only detecting movement of a body in a direction away from at least one of first sensor or the second sensor; and

preventing the deck from moving toward the range of operative positions in response to detecting the body in the sensed region
when the deck is in the stored upright position.

US Pat. No. 9,230,419

METHODS AND APPARATUS TO DETECT AND WARN PROXIMATE ENTITIES OF INTEREST

RITE-HITE HOLDING CORPORA...

1. A warning signal generation system comprising:
a selector to select between different modes of movement for a vehicle, the different modes of movement including at least
a forward position to enable the vehicle to move in a forward direction and a rearward mode to enable the vehicle to move
in a rearward direction;

a detector to determine which of the different modes of movement has been selected via the selector and to produce an output
indicative of that mode of movement; and

a signal generator including an input to receive the output indicative of the vehicle mode of movement from the detector,
the signal generator to generate a selected signal based on the received output indicative of the mode of movement of the
vehicle, the selected signal to represent a warning zone proximate the vehicle based on a direction of movement of the vehicle
indicated by the detected mode of movement of the vehicle, the signal generator to change a direction of the selected signal
based on a change in the mode of movement detected by the detector, and the signal generator to modify a size and a shape
of the warning zone based on a speed of the vehicle, the selected signal to communicate with a device separate from the vehicle
and within the warning zone.

US Pat. No. 9,174,811

VEHICLE RESTRAINTS WITH ROTATING AND TRANSLATING BARRIERS

RITE-HITE HOLDING CORPORA...

1. A vehicle restraint to engage a RIG (rear impact guard) of a vehicle at a loading dock, the vehicle restraint comprising:
a main body installable at the loading dock; and
a barrier to be coupled to the main body, the barrier to rotate about an axis relative to the main body along a first path
between an upper blocking position to block the RIG and a stored position to release the RIG when the axis is at a first position
spaced from a wall of the loading dock, the barrier and the axis to move laterally to a second position spaced from the wall
of the loading dock when the RIG is engaged with the barrier and the RIG moves in a direction away from the wall, the second
position being farther away from the wall than the first position, the barrier to rotate about the axis along a second path
different than the first path when the axis is in the second position.

US Pat. No. 9,482,444

FABRIC SILENCERS FOR AIR DUCTS

RITE-HITE HOLDING CORPORA...

1. An air duct silencer system comprising:
an inner tube being of a first pliable sheet material, the inner tube defining an airway extending along the inner tube;
an outer tube being of a second pliable sheet material, the outer tube to encircle the inner tube to define an annular space
between the outer tube and the inner tube; and

a sound absorbing material to be disposed within the annular space.

US Pat. No. 9,272,854

VEHICLE RESTRAINTS WITH ACTIVATED CATCHES

RITE-HITE HOLDING CORPORA...

1. A vehicle restraint to engage a RIG (rear impact guard) of a vehicle at a loading dock, the vehicle restraint comprising:
a main body mountable at the loading dock to move vertically relative to the loading dock;
a barrier movable relative to the main body to selectively block and release the RIG of the vehicle, the barrier being selectively
movable to a first blocking position to block the RIG, a stored position to release the RIG, and an intermediate position
between the first blocking position and the stored position;

a pawl movable relative to the barrier between an activated position and a released position;
a stop carried by the main body; and
a pawl actuator coupled to at least one of the main body and the barrier, the pawl actuator being movable relative to the
pawl, the pawl actuator having a contact surface to engage the RIG, the contact surface being movable between a raised position
and a lowered position relative to the barrier, the contact surface to move between the raised position and the lowered position
in response to relative movement between the RIG and the barrier and while the contact surface is in engagement with the RIG,
movement of the contact surface from the raised position to the lowered position to cause the pawl to move from the released
position to the activated position, the pawl being spaced apart from the stop when the barrier is at the intermediate position
and while the pawl is in the released position, the pawl to engage the stop when the barrier is at the intermediate position
and while the pawl is in the activated position.

US Pat. No. 9,145,273

VEHICLE RESTRAINTS WITH STOP MECHANISMS

RITE-HITE HOLDING CORPORA...

1. A vehicle restraint method for use at a loading dock for engaging a RIG (rear impact guard) of a vehicle, the vehicle restraint
method comprising:
positioning a main body underneath the RIG;
rotating a barrier relative to the main body in a first rotational direction about a first axis from a stored position clear
of the RIG to an upper blocking position to block the RIG;

rotating a brace relative to the barrier in a second rotational direction opposite the first rotational direction about a
second axis until prevented from further rotation in the second rotational direction by contacting the barrier, the second
axis at a substantially fixed location relative to the barrier and extending substantially parallel to the first axis;

while the brace is contacting the barrier, rotating the barrier in the second rotational direction about the first axis until
the brace engages a catch affixed to the main body, the catch to secure the barrier in an intermediate blocking position between
the stored position and the upper blocking position to continue blocking the RIG;

urging the brace to rotate in the first rotational direction about the second axis; and
capturing the brace in the intermediate position when the external force is removed from the brace after the tooth of the
brace engages the catch by providing a radius between a pivot axis of the brace and a tip of the tooth of the brace greater
than a radius between the pivot axis of the brace and a tip of the catch to enable the catch to obstruct the brace and prevent
the brace from rotating in the first rotational direction when an external force is removed from the brace.

US Pat. No. 9,126,775

LATCHING MECHANISMS FOR REMOVABLE CHOCKS

RITE-HITE HOLDING CORPORA...

1. A wheel restraint system for blocking a wheel at a loading dock that includes a driveway, the wheel restraint system comprising:
a track mountable to the driveway, the track includes a plurality of discrete catches, each catch of the plurality of discrete
catches includes a first surface;

a wheel chock selectively movable between a stored position and a wheel-blocking position, the wheel chock in the stored position
is spaced apart from the track, the wheel chock in the wheel-blocking position engages the track, the wheel chock including
a rotatable lever with an axis; and

a plurality of latch members attached to the wheel chock and being movable relative to the chock by connection with the lever,
each latch member rotatably movable about a substantially vertical axis thereof and including a second surface, the latch
members being selectively moveable via the rotatable lever between a latched position and an unlatched position relative to
the wheel chock, the second surface of each latch member to engage a respective first surface when the movable latch members
are in the latched position and the wheel chock is in the wheel-blocking position, the second surface being spaced apart from
the first surface when the movable latch members are in the unlatched position and the wheel chock is positioned on the track.

US Pat. No. 9,927,140

PLIABLE-WALL AIR DUCTS WITH INTERNAL EXPANDING STRUCTURES

RITE-HITE HOLDING CORPORA...

1. An air duct system comprising:an air duct extending in a longitudinal direction and including a pliable sidewall;
a framework disposed at least partially inside the air duct;
means for applying to the pliable sidewall a tensile force in the longitudinal direction; and
means for maintaining the tensile force in the pliable sidewall by bearing a reactive compressive force in a longitudinal portion of the framework positioned inside the air duct.

US Pat. No. 9,612,033

PLIABLE-WALL AIR DUCTS WITH INTERNAL EXPANDING STRUCTURES

RITE-HITE HOLDING CORPORA...

1. An air duct system for handling air selectively at an active positive air pressure and at an inactive ambient air pressure,
the air duct system comprising:
an air duct having a tubular shape to define a longitudinal direction, the air duct comprising a pliable sidewall; and
a framework disposed inside and coupled to the air duct, the air duct being held in tension in the longitudinal direction
by virtue of the framework being held in compression in the longitudinal direction, the framework comprising:

a shaft disposed within the air duct, extending in the longitudinal direction, and being in compression in the longitudinal
direction; and

a plurality of ribs coupled to the shaft and disposed within the air duct, the ribs having a shape that corresponds to at
least part of the tubular shape.

US Pat. No. 9,410,363

INSULATED DOOR PANELS

RITE-HITE HOLDING CORPORA...

1. A flexible door panel movable between an open position and a closed position relative to a doorway, the door panel comprising:
a first pliable sheet made of a first polymeric material, the first sheet having a first water vapor transmission rate;
a second pliable sheet made of a second polymeric material, the second sheet being generally parallel to the first sheet when
the door panel is in the closed position, the second sheet having a second water vapor transmission rate;

a thermally insulating pad between the first sheet and the second sheet, the thermally insulating pad being resiliently compressible;
and

a third pliable sheet between the first sheet and the second sheet, the third pliable sheet surrounding the thermally insulating
pad, the third sheet being free to translate relative to the first and second sheets and having a third water vapor transmission
rate, the third water vapor transmission rate being lower than the first water vapor transmission rate, and the third water
vapor transmission rate being lower than the second water vapor transmission rate, the third sheet being adjacent to and unintegrated
with the first sheet.

US Pat. No. 9,409,731

HEAD CURTAINS FOR DOCK SHELTERS OR DOCK SEALS

RITE-HITE HOLDING CORPORA...

1. A dock apparatus subject to a penetrating force exerted by an upper edge of a vehicle parked at a doorway of a wall, the
dock apparatus comprising:
a curtain to be suspended from a support panel and configured to be engaged by the vehicle, the curtain having an inner region
within an outer peripheral region, the inner region positioned between inner surfaces defining an opening of the doorway,
the curtain having:

a plurality of loops attached to the curtain, the plurality of loops to project away from a vehicle-engaging surface of the
curtain; and

a plurality of pleats overlapping the plurality of loops such that the plurality of loops is positioned between the vehicle-engaging
surface of the curtain and the plurality of pleats, at least one of the plurality of pleats or the plurality of loops being
positioned within the inner region of the curtain, the plurality of loops to urge the plurality of pleats in a direction away
from the curtain to enable the plurality of pleats to seal against at least one of a rear surface or an upper surface of the
vehicle when the vehicle engages the vehicle-engaging surface of the curtain.

US Pat. No. 9,624,049

PUNCTURE RESISTANT SEALS FOR LOADING DOCKS

Rite-Hite Holding Corpora...

1. A weather barrier for at least partially sealing or sheltering a vehicle parked at a loading dock of a building, wherein
the building has a doorway in a wall, and the doorway has an upper doorway edge, the weather barrier comprising:
a canopy having a back end and a front end, the back end being mountable to the wall above the doorway, the front end to protrude
forward from the wall when the canopy is mounted to the wall;

a front bar at the front end of the canopy, the front bar being horizontally elongate;
a back curtain hanging from the front bar, the back curtain having an upper curtain edge attached to the front bar, the back
curtain having a lower curtain edge that is at a lower elevation than an elevation of the upper doorway edge when the canopy
is mounted to the wall, the back curtain having a curtain width;

a front panel hanging in front of the back curtain, the front panel being less flexible than the back curtain, the front panel
having a panel width that is approximately 50 to 80 percent of the curtain width; and

a space being interposed between and defined by the front panel and the back curtain.

US Pat. No. 9,607,496

METHODS AND APPARATUS TO DETECT AND WARN PROXIMATE ENTITIES OF INTEREST

Rite-Hite Holding Corpora...

1. A hazard warning system for a forktruck, comprising:
a controllable light source to project light onto a floor adjacent the forktruck;
a hazard discriminator to determine when the forktruck poses a hazard to an entity of interest in a vicinity of the forktruck,
and responsively generate a hazard output; and

a controller to receive the hazard output, the controller to control the light source such that the light source is in a first
state when the hazard output is not received and a second state when the hazard output is received, the first state being
different than the second state, the light source is to project light in the first state and the second state.

US Pat. No. 9,376,274

DOCK LEVELER SAFETY SUPPORTS

RITE-HITE HOLDING CORPORA...

1. A dock leveler installable at a loading dock having a platform, the platform defining a pit having a pit width as measured
in a lateral direction, the dock leveler comprising:
a deck having an outer perimeter defined by a front edge, a rear edge, a first lateral edge and a second lateral edge, the
rear edge being proximate the platform and the front edge being movable relative to the platform between a raised position
and a lowered cross-traffic position when the dock leveler is in a working configuration, the first lateral edge and the second
lateral edge being proximate the platform when the deck is in the lowered cross-traffic position, the deck residing at least
partially in the pit when the front edge of the deck is in the lowered cross-traffic position, the front edge being above
at least one of the lowered cross-traffic position or the raised position and inhibited from descending toward the lowered
cross-traffic position when the dock leveler is in a service configuration;

a first deck obstruction being movable relative to the deck between a secured position and an unrestrained position, the first
deck obstruction in the secured position configures the dock leveler in the service configuration, the first deck obstruction
in the unrestrained position configures the dock leveler in the working configuration, the first deck obstruction to extend
farther beyond the outer perimeter of the deck when the first deck obstruction is in the secured position than when the first
deck obstruction is in the unrestrained position; and

an obstruction actuator operatively coupled to the first deck obstruction to move the first deck obstruction between the secured
position and the unrestrained position.

US Pat. No. 9,592,972

SEALING MEMBERS FOR WEATHER BARRIERS

Rite-Hite Holding Corpora...

1. A weather barrier comprising:
a lateral sealing member being vertically elongate, the lateral sealing member having a J-shaped cross-section extending between
an attached end and a tip of the lateral sealing member, the lateral sealing member defining a groove along the tip, the lateral
sealing member including a core within a covering, the core being stiffer than the covering, both the core and the covering
being vertically elongate, and both the core and covering extending between the attached end and the tip, the lateral sealing
member being movable between an activated configuration and a relaxed configuration, the tip to extend farther into a vehicle
pathway when the lateral sealing member is in the relaxed configuration than when the lateral sealing member is in the activated
configuration; and

a tip seal provided along the tip of the lateral sealing member, the tip seal to protrude in the groove, wherein the covering
and the tip seal are more flexible than the core.

US Pat. No. 9,394,742

FLEXIBLE INSULATED DOOR PANELS WITH INTERNAL BAFFLES

Rite-Hite Holding Corpora...

1. A door for a doorway, the door comprising:
a flexible door panel movable between an open position and a closed position relative to the doorway, the flexible door panel
including a first sheet, a second sheet that is generally parallel to the first sheet when the door is in the closed position,
and a plurality of pliable baffles coupled to and extending between the first sheet and the second sheet to define a plurality
of air chambers within the flexible door panel, the baffles to restrict redistribution of air between a top portion and a
bottom portion of the door panel when the door panel moves between the closed and open positions, without evacuating air from
the door panel;

separate bodies of insulation to be disposed within two or more of the plurality of air chambers; and
a mandrel about which the door panel bends as the door opens and closes, wherein the baffles are substantially parallel to
the mandrel.

US Pat. No. 9,605,864

PLIABLE-WALL AIR DUCTS WITH INTERNAL EXPANDING STRUCTURES

RITE-HITE HOLDING CORPORA...

1. An air duct system for conveying a current of air, the air duct system comprising:
an air duct comprising a tubular pliable sidewall with an inner surface, the air duct defining an inlet and an outlet, the
air duct defining a nonlinear airflow path from the inlet to the outlet;

a shaft having a longitudinal centerline, the shaft being configurable selectively to an installed configuration and a removed
configuration, the longitudinal centerline lies along a first nonlinear line when the shaft is in the installed configuration,
the shaft has a first shape in the installed configuration and a second shape in the removed configuration, the first shape
being distinguishable from the second shape;

a plurality of ribs to be coupled to the shaft, the plurality of ribs engaging the inner surface of the tubular pliable sidewall
when the shaft and the plurality of ribs are disposed within the air duct with the shaft in the installed configuration; and

a plurality of shaft segments connected by an articulation joint that enables the plurality of shaft segments angularly to
be moved relative to each other when the shaft is in the removed configuration, wherein the articulation joint is more flexible
than each shaft segment of the plurality of shaft segments.

US Pat. No. 9,586,771

VEHICLE RESTRAINTS WITH UNDERSIDE CATCHES

Rite-Hite Holding Corpora...

1. A vehicle restraint to engage a RIG (rear impact guard) of a vehicle at a loading dock, the vehicle restraint comprising:
a main body mountable at the loading dock to move vertically relative to the loading dock, the main body including a first
plate and a second plate that are spaced apart to define a barrier-receiving space therebetween;

a barrier to extend into the barrier-receiving space, the barrier including a first side, a second side, a proximal end, a
distal end, and an outer peripheral edge extending between the first side and the second side, the outer peripheral edge including
an operative edge extending between the proximal end and the distal end and a back edge extending between the proximal end
and the distal end, the proximal end being pivotally coupled to the main body and being interposed between the first plate
and the second plate, the distal end being selectively movable relative to the main body to a first blocking position to block
the RIG, a plurality of extended blocking positions beyond the first blocking position, and a stored position to release the
RIG, the distal end relative to the main body being higher in the first blocking position than in the stored position, the
first side of the barrier generally facing the first plate of the main body when the distal end is in the stored position,
the second side of the barrier generally facing the second plate of the main body when the distal end is in the stored position,
the barrier providing a RIG-receiving area defined by the operative edge, the back edge being disposed outside of the RIG-receiving
area, the barrier to encircle an axis about which the barrier is to pivot relative to the main body, the back edge being disposed
outside of and generally opposite the RIG-receiving area;

an engageable feature projecting from the back edge of the barrier; and
a stop coupled to the main body and being selectively moveable between a release position and a holding position, the stop
to engage the engageable feature of the back edge when the distal end is at the first blocking position while the stop is
at the holding position, the stop being spaced apart from the engageable feature when the distal end is at the first blocking
position while the stop is at the release position, and the stop being spaced apart from the engageable feature when the distal
end is in the stored position.

US Pat. No. 9,518,756

EXTERNAL RIB CAGE FOR AN INFLATABLE AIR DUCT

RITE-HITE HOLDING CORPORA...

1. An air duct assembly, comprising:
an inflatable tube defining an air passageway therethrough;
a support structure defining a line centrally disposed above the inflatable tube;
a plurality of hangers attached to the support structure to be above the inflatable tube, each of the plurality of hangers
having a longitudinal length extending in a direction traversing the line centrally disposed above the inflatable tube, the
plurality of hangers including a hanger having a first end of the longitudinal length coupled to a first point of the inflatable
tube and a second end of the longitudinal length coupled to a second point of the inflatable tube, the first point located
within a first portion of the tube extending along a length of the tube, the second point located within a second portion
of the tube extending along the length of the tube, the tube being solely formed from a unitary pliable material at the first
and second portions; and

a plurality of connectors attached to the support structure, the plurality of connectors being structurally different from
the plurality of hangers, the plurality of connectors including a connector coupled to a third point within a third portion
of the inflatable tube extending along the length of the tube, the third portion being spaced-apart from the first and second
portions, the plurality of hangers and the plurality of connectors being distributed in an alternating pattern along the line.

US Pat. No. 9,494,336

CONFIGURABLE PLIABLE AIR DUCTS

Rite-Hite Holding Corpora...

1. An inflatable air duct assembly for conveying air in a longitudinal direction, the inflatable air duct assembly comprising:
a first sidewall piece that is pliable;
a first zipper side along a first longitudinal edge of the first sidewall piece, the first zipper side to selectively zip
with either a second zipper side along a second longitudinal edge of the first sidewall piece or a third zipper side along
a longitudinal edge of a second sidewall piece to provide a first tube segment selectively configurable in at least one of
a first configuration having a first diameter when the first zipper side is zipped with the second zipper side or a second
configuration having a second diameter larger than the first diameter when the first zipper side is zipped with the third
zipper side, the first longitudinal edge of the first sidewall piece to extend in the longitudinal direction;

a second tube segment that is pliable; and
a disconnectable circumferential joint connecting the first and second tube segments end-to-end.

US Pat. No. 9,776,511

VEHICLE ALIGNMENT SYSTEMS FOR LOADING DOCKS

RITE-HITE HOLDING CORPORA...

1. A vehicle alignment system for monitoring a vehicle at a loading dock, the vehicle alignment system comprising:
a sensor to be positioned between lateral sides of a doorway of the loading dock, the sensor to sense between a first perimeter
lateral edge and a second perimeter lateral edge of a RIG of the vehicle, the sensor to provide a feedback signal representative
of a spatial orientation of the RIG relative to a reference as the vehicle approaches the doorway of the loading dock;

a processor to detect a threshold deviation in the spatial orientation of the RIG relative to the reference by comparing the
feedback signal and the reference; and

a display to generate an indication representative of the deviation in the spatial orientation of the RIG relative to the
reference.

US Pat. No. 9,738,467

MONITORING VEHICLE RESTRAINTS OVER A CONTINUOUS RANGE OF POSITIONS

RITE-HITE HOLDING CORPORA...

1. A vehicle restraint apparatus comprising:
a barrier movable between a fully extended position to restrain a vehicle at a loading dock, a fully retracted position to
release the vehicle, and a plurality of intermediate positions between the fully extended position and the fully retracted
position;

a sensor mounted to the vehicle restraint apparatus, the sensor to monitor at least one of a barrier or a vehicle, the sensor
including a camera to capture an image of the at least one of the barrier or the vehicle; and

a controller to receive the captured image from the camera, the controller to determine at least one of a characteristic of
the at least one of the barrier or the vehicle.

US Pat. No. 9,605,865

PLIABLE-WALL AIR DUCTS WITH INTERNAL EXPANDING STRUCTURES

RITE-HITE HOLDING CORPORA...

1. An air duct system for supporting an air duct, the air duct system comprising:
a tubular pliable sidewall defining a flow direction along which the air duct system conveys a current of air;
a ring disposed within the tubular pliable sidewall and lying substantially perpendicular to the flow direction;
a hub disposed substantially at a center point of the ring, the hub extending lengthwise in the flow direction; and
a plurality of spokes extending between the ring and the hub, the plurality of spokes being attached to the hub at a plurality
of points that are distributed lengthwise along the hub, the air duct being in tension along the flow direction of the air
duct.

US Pat. No. 9,564,072

METHODS AND APPARATUS TO GENERATE LOADING DOCK VISUAL INDICATORS

Rite-Hite Holding Corpora...

1. An apparatus, comprising:
a controller in communication with a vehicle restraint of a loading dock; and
a display in communication with the controller, the display having:
a first directional indicator and a first graphic adjacent the first directional indicator, in relation to the first graphic
the first directional indicator to indicate a first direction, the display to display the first directional indicator in a
first orientation relative to the first graphic and a first color if a vehicle is restrained via the vehicle restraint; and

a second directional indicator and a second graphic adjacent the second directional indicator, in relation to the second graphic
the second directional indicator to indicate a second direction, the display to display the second directional indicator in
a second orientation relative to the second graphic and a second color if the vehicle is not restrained via the vehicle restraint
the first characteristic of the first directional indicator including first pointers and second pointers positioned in a row.

US Pat. No. 9,556,672

ROLLING WINDBARS FOR ROLL-UP DOORS

RITE-HITE HOLDING CORPORA...

1. A roll-up door for use at a doorway, wherein the doorway extends vertically between a lintel and a floor, the roll-up door
comprising:
a track system to be mounted proximate the doorway;
a curtain having a leading edge that is to be movable selectively to a closed position and an open position, the curtain blocking
the doorway when the leading edge is at the closed position, and the curtain unblocking the doorway when the leading edge
is at the open position;

a track roller to vertically travel along the track system, the track roller to be rotatable relative to the track system,
the track roller to be provided on a carriage;

a windbar to be coupled to the track roller, the windbar to be horizontally elongate and higher than the leading edge of the
curtain when the leading edge is at the closed position, the windbar being closer to the lintel when the leading edge of the
curtain is at the open position than when the leading edge is at the closed position, the windbar defining an axis along a
length of the windbar, and the windbar to be vertically movable with the track roller and to be rotatable about the axis relative
to the curtain and the carriage; and

a suspender to carry the carriage and the windbar, the suspender to be directly connected to the carriage.

US Pat. No. 10,032,380

PEDESTRIAN-VEHICLE SAFETY SYSTEMS FOR LOADING DOCKS

RITE-HITE HOLDING CORPORA...

1. A sensor system for a loading dock, the sensor system comprising:at least one or more pedestrian sensors to monitor a first pedestrian zone or a second pedestrian zone in front of a dock face of a loading dock, the pedestrian sensors to detect a pedestrian in at least one of the first pedestrian zone or the second pedestrian zone, wherein a first forward edge of the first pedestrian zone to be at a first distance from a wall of the loading dock and a second forward edge of the second pedestrian zone to be at a second distance from the wall, the first distance being greater than the second distance;
a first vehicle detector to detect a vehicle near the first pedestrian zone;
a second vehicle detector to detect the vehicle near the second pedestrian zone; and
a sensor manager to disable the first pedestrian zone when the first vehicle detector detects the vehicle approaching the first pedestrian zone and at least one of the pedestrian sensors does not detect the pedestrian in the first pedestrian zone, and the sensor manager to disable the second pedestrian zone when the second vehicle detector detects the vehicle approaching the second pedestrian zone and at least one of the pedestrian sensors does not detect the pedestrian in the second pedestrian zone.

US Pat. No. 9,777,529

LOADING DOCK ALERT REPORT SYSTEM

Rite-Hite Holding Corpora...

1. A docking station peripheral monitoring apparatus for use in a distribution center having at least one docking station
configured to receive a trailer comprising:
a plurality of peripherals associated with the at least one docking station and configured to facilitate material exchange
between the trailer and the distribution center through the docking station; and

a computer system configured to:
monitor an operation of the plurality of peripherals;
store the operation of the plurality of peripherals in a storage medium associated with the computer system; and
restrict the operation of the plurality of peripherals in accordance with a workflow procedure.

US Pat. No. 9,709,193

PLIABLE AIR DUCTS WITH ANTI-CONDENSATION NOZZLES

RITE-HITE HOLDING CORPORA...

1. An air duct system, comprising:
a tubular duct including a pliable wall dividing an interior of the tubular duct from an exterior of the tubular duct;
an outlet member to be attached to the pliable wall, the outlet member defining a main air passageway with a first flow resistance
therethrough, the outlet member including a mounting flange extending around the main air passageway, the mounting flange
includes a rigid inner flange and a rigid outer flange, the pliable wall sandwiched between the inner flange and the outer
flange during operation of the air duct system when the outlet member is attached to the pliable wall, the outlet member having
an inner surface directly exposed to the interior of the tubular duct and an outer surface directly exposed to the exterior
of the tubular duct, the main air passageway extending through the outlet member between the inner surface and the outer surface
to place the interior of the tubular duct in fluid communication with the exterior of the tubular duct; and

a secondary air passageway with a second flow resistance therethrough, the secondary air passageway being defined by at least
one of the outlet member or the pliable wall, the secondary air passageway extending from the interior of the tubular duct
to the exterior of the tubular duct, the secondary air passageway defining an airflow path proximate the outlet member, the
second flow resistance being significantly greater than the first flow resistance.

US Pat. No. 9,672,713

METHODS AND APPARATUS TO DETECT AND WARN PROXIMATE ENTITIES OF INTEREST

Rite-Hite Holding Corpora...

1. A method comprising:
obtaining a location of a first entity of interest in a building identified with a plurality of zones;
obtaining directional information of the first entity of interest;
determining a first zone of the plurality of zones in which the first entity of interest is approaching;
activating a sensor only upon detection of the first entity of interest approaching the first zone;
sensing, via the sensor, a presence of a second entity of interest within the first zone; and
generating a threat-specific warning in response to the second entity of interest being within the first zone and the first
entity of interest approaching the first zone.

US Pat. No. 9,631,427

DOOR CURTAINS WITH POSITION SENSOR SWITCHES

RITE-HITE HOLDING CORPORA...

1. A door for selectively blocking and unblocking a passageway, the door comprising:
a frame to be adjacent the passageway;
a curtain moveable selectively to a closed position and a first open position, the curtain blocking the passageway in the
closed position, and the curtain unblocking the passageway in the first open position;

a bracket to be attached to the frame, the bracket being movable selectively to a normal position and a displaced position
relative to the frame; and

a switch to be attached to the bracket and in sensing relationship with the curtain, the switch to move with the bracket between
the normal position and the displaced position, the curtain supporting at least some weight of the bracket when the bracket
is in the displaced position, the curtain supporting no weight of the bracket when the bracket is in the normal position.

US Pat. No. 9,493,984

SYSTEMS AND METHODS TO RETAIN AND REFEED DOOR CURTAINS

RITE-HITE HOLDING CORPORA...

1. A door for selectively blocking and unblocking a doorway through a wall, the door comprising:
a first track;
a second track spaced laterally from the first track to define a span between the first track and the second track;
a curtain including a main section, a first lateral section, a second lateral section, and a leading section; the first lateral
section to extend into the first track, the second lateral section to extend into the second track, the main section extending
between the first lateral section and the second lateral section, the main section spaced apart from the first track and the
second track, the leading section below the main section and extending between the first lateral section and the second lateral
section, the leading section movable selectively to a closed position and an open position, the curtain to block the doorway
when the leading section is at the closed position, the curtain to unblock the doorway when the leading section is at the
open position, the curtain in a normal state when the first lateral section in an area proximate the leading section is in
guiding engagement with the first track, the curtain in a breakaway state associated with a folded condition when the first
lateral section in the area proximate the leading section is dislodged from the first track and folded over onto the main
section to define an enfolded space between a folded over portion of the first lateral section and the main section, the curtain
in the breakaway state associated with an unfolded condition when the first lateral section in the area proximate the leading
section is dislodged from the first track but not folded over onto the main section; and

an unfolder disposed within the span between the first track and the second track, the unfolder to extend into the enfolded
space as the leading section moves toward the open position while the curtain is in the folded condition such that the unfolder
extends below an edge of the curtain, the edge being along the folded over portion.

US Pat. No. 9,150,367

VEHICLE RESTRAINTS WITH STOP MECHANISMS

RITE-HITE HOLDING CORPORA...

1. A vehicle restraint for use at a loading dock for engaging a RIG (rear impact guard) of a vehicle, the vehicle restraint
comprising:
a main body mountable at the loading dock;
a barrier rotatably movable relative to the main body about a first axis between a blocking position to block the RIG and
a release position to release the RIG, the barrier having a brace-engaging surface;

a brace for rotation about a second axis spaced apart relative to the first axis of the barrier, the brace to rotate about
the second axis between an activated position and a release position; and

a catch fixed to the main body and having a first tooth-engaging surface the brace to remain continuously in engagement with
the brace-engaging surface of the barrier and the first tooth-engaging surface of the catch when in the activated position
to provide a bi-directional stop to prevent rotation of the brace about the second axis in a first direction and a second
direction when a vehicle engages and disengages the barrier as the vehicle moves between the barrier and a wall of the loading
dock during at least one of a loading or unloading operation, the brace to prevent rotation of the barrier toward a stored
position during at least one of the loading or unloading operations when the brace is in the activated position.

US Pat. No. 9,771,225

METHODS AND APPARATUS FOR MONITORING A LOADING DOCK

RITE-HITE HOLDING CORPORA...

1. A method for monitoring a loading dock, the method comprising:
sensing, via a first sensor, a first area inside of a building of the loading dock, the first area including a first portion
of a deck positioned adjacent a doorway; and

sensing, via a second sensor, a second area inside of the building of the loading dock adjacent the doorway, the second area
including a second portion of the deck adjacent the doorway;

detecting, via a processor and a signal received from the first sensor, at least one of a door of the doorway being in at
least one of an open position or a closed position, a presence of a body in the first area, or a presence of a vehicle at
the loading dock; and

determining, via a processor and a signal received from the second sensor, a presence of the body in the second area.

US Pat. No. 9,926,148

PEDESTRIAN-VEHICLE SAFETY SYSTEMS FOR LOADING DOCKS

RITE-HITE HOLDING CORPORA...

1. A method for detecting a subject at a loading dock that includes an indoor area, an outdoor area, a doorway between the indoor area and the outdoor area, and a dock face generally facing in a forward direction toward the outdoor area, the method comprising:projecting, via a sensor, a first sensing projection and a second sensing projection relative to the dock face, the first sensing projection to extend a first sensing length relative to the dock face and the second sensing projection to extend a second sensing length relative to the dock face, the second sensing length being greater than the first sensing length;
detecting an interruption of at least one of the first sensing projection or the second sensing projection by a subject;
determining that the subject is a person when the subject interrupts the first sensing projection and the second sensing projection simultaneously; and
determining that the subject is a vehicle when the subject interrupts the second sensing projection before interrupting the first sensing projection in response to the vehicle moving toward the dock face.

US Pat. No. 9,797,128

VEHICLE-ACTUATED WEATHER BARRIER APPARATUS

RITE-HITE HOLDING CORPORA...

1. A weather barrier apparatus comprising:
a mount to couple to a wall of a loading dock, the mount having a pivot joint and a slider; and
a seal to couple to the mount via the pivot joint, the pivot joint to enable the seal to pivot relative to the mount and the
slider to enable the seal to translate in a direction substantially parallel relative to the wall, the seal having:

a first flexible panel having a curved shape between a distal end and a proximal end when the first flexible panel is coupled
to the mount, the first panel having a first radius of curvature when the first flexible panel is in a relaxed configuration
and a second radius of curvature when the first flexible panel is in an activated configuration, the first flexible panel
being in the relaxed configuration when the first flexible panel is not engaged by a vehicle and the first flexible panel
being in the activated configuration when first flexible panel is engaged by the vehicle, the first flexible panel to conform
to a shape of the vehicle when the vehicle is in engagement with the first flexible panel;

a second flexible panel having a distal end and a proximal end, the first and second flexible panels being directly attached
at their distal ends and at their proximal ends to define a cavity between the first flexible panel and the second flexible
panel; and

a guide positioned in the cavity and to extend between an inner surface of the first flexible panel and an inner surface of
the second flexible panel, the guide to movably couple the first flexible panel and the second flexible panel to enable the
first flexible panel to move between the relaxed configuration and the activated configuration.

US Pat. No. 9,784,469

FABRIC SILENCERS FOR AIR DUCTS

RITE-HITE HOLDING CORPORA...

1. An air duct silencer system comprising:
an inner tube being of a first pliable sheet material, the inner tube defining an airway extending along the inner tube;
an outer tube being of a second pliable sheet material, the outer tube to encircle the inner tube to define an annular space
between the outer tube and the inner tube; and

a sound absorbing material to be disposed within the annular space.

US Pat. No. 9,771,754

FLEXIBLE SEALS FOR INSULATED DOORS

RITE-HITE HOLDING CORPORA...

1. A seal for a door, comprising:
a first mounting rail;
a second mounting rail spaced apart from the first mounting rail;
a flexible sheet extending between the first mounting rail and the second mounting rail, the flexible sheet to be biased away
from the first and second mounting rails to sealingly engage the door when the door is in a closed position; and

a connecting block to connect the first mounting rail to the second mounting rail, the connecting block less thermally conductive
than either the first or second mounting rails; and

stays to bias the flexible sheet away from the first and second mounting rails.

US Pat. No. 9,751,703

FACE PANELS FOR LOADING DOCK SEALS AND SHELTERS

RITE-HITE HOLDING CORPORA...

1. A seal assembly for sealing against a vehicle at a loading dock, the loading dock including a wall with a doorway, the
seal assembly comprising:
a foam pad;
a pliable cover to couple to the foam pad; and
a shield to attach to the foam pad, the shield having a first end and a second end, the first end to couple to at least one
of the foam pad or the pliable cover and the second end to project adjacent a vehicle-engaging surface of the foam pad, the
shield to move relative to the foam pad between a standby position when a vehicle is in a non-engaging relationship with the
vehicle-engaging surface and a deflected position when the vehicle is in engagement with the vehicle-engaging surface, the
pliable cover is to deform in response to engagement of the vehicle with the pliable cover, deformation of the pliable cover
is to cause the shield and the pliable cover to move toward an inner surface of the vehicle such that the shield and the pliable
cover seal an air gap defined by a door hinge of the vehicle, the shield and the pliable cover to extend inside the vehicle
along an inner side wall inside the vehicle when the shield and the pliable cover seal the air gap.

US Pat. No. 9,633,537

METHODS AND APPARATUS TO DETECT AND WARN PROXIMATE ENTITIES OF INTEREST

Rite-Hite Holding Corpora...

1. A method comprising:
receiving a classification of predetermined threat levels of different zones within a building, the predetermined threat levels
to include at least one of a first predetermined threat level and a second predetermined threat level;

associating a first detectable indicator with a first zone of a plurality of different zones having the first predetermined
threat level;

associating a second detectable indicator with a second zone of the plurality of different zones having the second predetermined
threat level; and

providing a vehicle capable of moving between the first and second zones, the vehicle capable of detecting, via a detector,
at least one of the first detectable indicator or second detectable indicator.

US Pat. No. 9,551,181

JOINT SEALS FOR FLEXIBLE WALL PANELS

Rite-Hite Holding Corpora...

1. A room divider, comprising:
a first panel including a first outer sheet, a first connecting sheet, and a first core positioned between the first outer
sheet and the first connecting sheet;

a second panel including a second outer sheet, a second connecting sheet, and a second core positioned between the second
outer sheet and the second connecting sheet;

a first seal attached to a first edge of the first panel, the first seal extending from the first edge to provide a first
line of contact with at least one of the first panel or the second panel, the first seal directly contacting the first outer
sheet and the first connecting sheet;

a second seal attached to a second edge of the second panel, the second seal extending from the second edge to provide a second
line of contact with at least one of the first panel or the second panel, the second seal directly contacting the second outer
sheet and the second connecting sheet; and

a touch-and-hold fastener to connect the first panel and the second panel, the touch-and-hold fastener being positioned between
the first line of contact of the first seal and the second line of contact of the second seal, the first seal and the second
seal to shelter the touch-and-hold fastener between the first line of contact and the second line of contact to restrict air
flow through the touch-and-hold fastener.

US Pat. No. 9,542,824

METHODS AND APPARATUS TO DETECT AND WARN PROXIMATE ENTITIES OF INTEREST

Rite-Hite Holding Corpora...

1. A detection system comprising:
a light source attachable to a forktruck, the light source to project an illuminated indicator on a floor on which the forktruck
is to traverse at a distance from a front end of the forktruck, the light source being separate from a headlight of the forktruck,
the indicator to project a first illuminated warning field indicative of a non-hazardous condition when neither a vehicle
nor a pedestrian is detected by the forktruck to be within a warning zone of the forktruck, and the indicator to project a
second illuminated warning field indicative of a hazardous condition when at least one of the vehicle or the pedestrian is
detected within the warning zone of the forktruck, the first illuminated warning field being different than the second illuminated
warning field.

US Pat. No. 9,644,858

EXTERNALLY TENSIONED PLIABLE AIR DUCTS

RITE-HITE HOLDING CORPORA...

1. An air duct assembly comprising:
an air duct elongate in a longitudinal direction, the air duct including a tubular sidewall that is pliable, the tubular sidewall
defining an interior of the air duct and an external area outside the air duct;

a hoop disposable within the interior of the air duct, the hoop providing the sidewall with support in a radial direction
that is substantially perpendicular to the longitudinal direction; and

a substantially rigid bracket to pass through an opening in the tubular sidewall between opposite ends of the air duct, the
bracket to extend, as a rigid unit, from the hoop to an overhead support member in the external area outside the air duct,
the bracket to be rigidly fixed to the hoop and the overhead support member, the bracket cooperating with the hoop to subject
the air duct to tension in the longitudinal direction.

US Pat. No. 9,909,271

SHOCK ABSORBING RETRACTABLE BOLLARD SYSTEMS

RITE-HITE HOLDING CORPORA...

1. A retractable bollard system for installation in a support surface that includes pavement, the retractable bollard system
comprising:
a shell that when installed in the support surface extends below an upper surface of the pavement;
a post telescopically coupled to the shell, the post being axially movable relative to the shell selectively to an upper area
and a lower area, wherein in the upper area, the head of the post is above a top of the shell, and in the lower area, the
head of the post is proximate the top of the shell, the post extending farther above the shell when the post is in the upper
area than when the post is in the lower area;

a spring to urge the post from the lower area toward the upper area, wherein, when the head of the post is in the upper area,
the post is rotatable relative to the shell selectively between a locked position and an unlocked position, the locked position
being higher than the unlocked position; and

a shock absorber to encircle the shell, the shock absorber made of a polymeric material.

US Pat. No. 9,896,282

PEDESTRIAN-VEHICLE WARNING SYSTEMS FOR LOADING DOCKS

RITE-HITE HOLDING CORPORA...

1. A safety system for a loading dock that includes a vehicle restraint adapted to engage a vehicle parked at the loading
dock, the vehicle restraint having an electrical component, the safety system comprising:
a first sensor installable at the loading dock to sense the vehicle approaching the loading dock and to provide a feedback
signal in response to sensing the vehicle;

an alarm device to be electrically wired to the electrical component of the vehicle restraint, the alarm device being configured
to receive the feedback signal from the first sensor;

an alarm signal emitted by the alarm device in response to the feedback signal to warn a pedestrian in a path of the approaching
vehicle detected by the first sensor;

a second sensor installable at the loading dock, the second sensor to sense and generate a feedback signal representative
of the vehicle restraint being in an operative configuration to restrict movement of the vehicle relative to the loading dock
and a stored configuration to allow movement of the vehicle relative to the loading dock; and

a signal device installable at the loading dock and being positioned at a remote location from the alarm device, the signal
device to receive the feedback signal from the second sensor and to generate an output visible to a driver of the vehicle
corresponding to a status of the vehicle restraint sensed by the second sensor.

US Pat. No. 9,790,038

BUMPERS FOR USE AT LOADING DOCKS

RITE-HITE HOLDING CORPORA...

1. A loading dock apparatus for receiving a vehicle backing into a loading dock, the loading dock having a platform that is
elevated relative to a driveway leading to the platform, the platform defining a pit extending in a vertical direction between
a pit floor and an upper surface of the platform, the pit extending in a lateral direction between a right sidewall and a
left sidewall of the pit, the pit extending in a longitudinal direction between a back wall of the pit and a dock face that
extends downward from the upper surface of the platform to the driveway, the lateral direction being horizontal and perpendicular
to the vertical direction, the longitudinal direction being horizontal and perpendicular to both the vertical direction and
the lateral direction, the loading dock further having a deck extending into the pit, the deck being selectively movable to
a raised position and a lowered position relative to the platform, the loading dock further having a lip attached to the deck,
the lip having a distal edge that is movable selectively to an extended position and a retracted position relative to the
deck, the loading dock apparatus comprising:
a first RIG bumper attached to the dock face, the first RIG bumper protruding in the longitudinal direction from the dock
face to a RIG-engaging surface of the first RIG bumper, the first RIG bumper having a lip-engaging surface facing upward,
the distal edge of the lip to engage the lip-engaging surface of the first RIG bumper when the deck is in the lowered position
while the lip is in the retracted position, the distal edge of the lip being spaced apart from the lip-engaging surface when
the deck is in the raised position, and the RIG-engaging surface moving relative to the lip-engaging surface in reaction to
an impact created by the vehicle backing up against the first RIG bumper.

US Pat. No. 9,562,432

INFLATABLE AIR BARRIERS

Rite-Hite Holding Corpora...

1. An inflatable air barrier for a passageway extending between a first area and a second area, the passageway being defined
by an upper surface, a lower surface, a first lateral surface and a second lateral surface, the inflatable air barrier comprising:
an inflatable tube having an inflated state and a deflated state, the inflatable tube being manually deformable in the inflated
state from a normal shape to a manually deformed shape, the inflatable tube to extend across the passageway with ends to be
urged against the first lateral surface and the second lateral surface of the passageway to provide a pneumatic seal within
the passageway between the inflatable tube and the first and second lateral surfaces of the passageway when the inflatable
tube is in the inflated state while in the normal shape, an access opening through the passageway to be provided when the
inflatable tube is in the inflated state while in the manually deformed shape.

US Pat. No. 9,909,358

FLEXIBLE INSULATED DOOR PANELS WITH INTERNAL BAFFLES

RITE-HITE HOLDING CORPORA...

1. A flexible door panel for moving between an open position and a closed position relative to a doorway, the door panel comprising:
a first unitarily formed sheet;
a second unitarily formed sheet that is generally parallel to the first sheet when the door panel is in the closed position;
a plurality of baffles extending between the first sheet and the second sheet to define a plurality of air chambers within
the flexible door panel, wherein one of the plurality of baffles forms a first acute angle with the first sheet relative to
a first side of the baffle and a second acute angle with the second sheet relative to a second side of the baffle when the
flexible door panel is in the closed position;

a mandrel about which the door panel is to bend as the door moves between the open position and the closed position, the plurality
of baffles to extend across the door panel parallel to the mandrel to restrict redistribution of air between the chambers
as the panel is rolled about the mandrel; and

separate insulation pads to be inserted in two adjacent chambers of the plurality of air chambers, the two adjacent chambers
to be separated by the one of the plurality of baffles, wherein the insulation pads are to be unitarily formed with a self-held
shape that is to substantially fill a first area defined by the first acute angle and a second area defined by the second
acute angle, the plurality of baffles to be spaced apart such that the separate insulation pads are to abut the first and
second sheets.

US Pat. No. 9,694,996

DOCK LEVELER SAFETY SUPPORTS AND RELATED METHODS

Rite-Hite Holding Corpora...

1. A dock leveler installable at a loading dock having a platform, the platform defining a pit having a pit width as measured
in a lateral direction, the dock leveler comprising:
a deck being movable relative to the platform, the deck including a deck plate, a plurality of support beams, a first side
plate and a second side plate, the deck plate having a deck width as measured in the lateral direction, the deck plate having
a deck length as measured in a longitudinal direction that is coplanar with the deck plate and perpendicular to the lateral
direction, the plurality of support beams being underneath the deck plate and being elongate in the longitudinal direction,
the deck plate having an outer perimeter defined by a front edge, a rear edge, a first lateral edge and a second lateral edge,
the front edge extending in the lateral direction and being vertically movable, the rear edge extending in the lateral direction
and being proximate the platform, the first lateral edge and the second lateral edge extending in the longitudinal direction
between the front edge and the rear edge, the first lateral edge and the second lateral edge being substantially parallel
to the longitudinal direction, the first side plate being proximate the first lateral edge and being elongate in the longitudinal
direction, the second side plate being proximate the second lateral edge and being elongate in the longitudinal direction,
the plurality of support beams being interposed between the first side plate and the second side plate; and

a first deck obstruction extending underneath the deck plate and being selectively configurable to at least one of a blocking
position or a stored position, the first deck obstruction being elongate in the lateral direction, the first deck obstruction
having a protruding end, the first side plate being closer to the protruding end when the first deck obstruction is in the
stored position than when the first deck obstruction is in the blocking position, the first deck obstruction extending laterally
beyond the deck width when the deck obstruction is in the blocking position, the first deck obstruction having a pulling enhancement
at the protruding end to move the deck obstruction between the stored position and the blocking position.

US Pat. No. 9,534,372

VEHICLE-ACTUATED WEATHER BARRIER APPARATUS

Rite-Hite Holding Corpora...

1. A weather barrier apparatus comprising:
a curtain including a plurality of compressible tubes positioned between a first end of the curtain and a second end of the
curtain, each of the compressible tubes defining a cavity that moves between a collapsed position when the curtain is in a
relaxed condition and not engaged by a vehicle, and an expanded position when the curtain is a taut condition and engaged
by the vehicle.

US Pat. No. 9,534,373

VEHICLE-ACTUATED WEATHER BARRIER APPARATUS

Rite-Hite Holding Corpora...

1. A weather barrier apparatus positionable adjacent an opening of a doorway of a building, the weather barrier comprising:
an upper seal;
a first side seal, the first side seal being slidably coupled relative to a first end of the upper seal to define a first
corner, the first corner being movable laterally in a first direction toward a center of the doorway and a second direction
away from the center of the doorway; and

a second side seal, the second side seal being slidably coupled relative to a second end of the upper seal to define a second
corner, the second corner being movable laterally in the first direction toward the center of the doorway and the second direction
away from the center of the doorway, the first side seal being substantially parallel relative to the second side seal, and
the first and second side seals being substantially perpendicular relative to the upper seal.

US Pat. No. 9,957,121

SAFETY SYSTEMS FOR VERTICALLY STORING DOCK LEVELERS

RITE-HITE HOLDING CORPORA...

1. A dock leveler safety system for use at a dock platform in a pit having a pit floor, the pit floor being at a lower elevation than the dock platform, the dock platform and the pit floor defining the pit, the dock leveler safety system comprising:a deck to pivot relative to the dock platform between an upright position and a lowered position, the deck extending farther over the pit floor when the deck is in the lowered position than when the deck is in the upright position; and
a sensor to monitor a sensed region within the pit when the deck is in the upright position, the sensor to provide a reaction signal in response to a body being detected within the sensed region prior to moving the deck toward the lowered position and without the deck having to approach the body, the deck to enter a state of restricted movement in response only to the reaction signal provided by the sensor.

US Pat. No. 9,997,067

DYNAMICALLY CONFIGURABLE TRAFFIC CONTROLLERS AND METHODS OF USING THE SAME

RITE-HITE HOLDING CORPORA...

1. An apparatus, comprising:a first sensor to be directed in a first direction to detect oncoming traffic;
a first display to face the first direction;
a second sensor to be directed in a second direction to detect oncoming traffic;
a second display to face the second direction;
a third sensor to be directed in a third direction to detect oncoming traffic;
a third display to face the third direction;
a fourth sensor to be directed in a fourth direction to detect oncoming traffic;
a fourth display to face the fourth direction; and
a processor, the processor to define a first relationship between the first sensor and the second display, the first relationship to cause the second display to display a first signal in response to the first sensor identifying traffic and a second signal in response to the first sensor and the second sensor identifying traffic, the first signal indicative of a first warning level, the second signal indicative of a second warning level greater than the first warning level, the processor to cause the first signal to be displayed by the second display and for no signal to be displayed by the first display in response to traffic being identified by the first sensor and no traffic being identified by the second sensor, the processor to define a second relationship between the first sensor and the third display, the processor to define a third relationship between the first sensor and the fourth display, the second relationship to cause the third display to display the first signal in response to the first sensor identifying traffic and the second signal in response to the first sensor and the third sensor identifying traffic, the third relationship to cause the fourth display to display the first signal in response to the first sensor identifying traffic and the second signal in response to the first sensor and the fourth sensor identifying traffic.

US Pat. No. 9,969,576

INFLATABLE WEATHER BARRIERS FOR LOADING DOCKS

RITE-HITE HOLDING CORPORA...

1. A weather barrier to at least partially seal or shelter a vehicle parked at a loading dock of a building, the building having a wall facing in a forward direction generally toward the vehicle when the vehicle is parked at the loading dock, the wall defining a doorway proximate a rear portion of the vehicle when the vehicle is parked at the loading dock, the doorway lying along a plane that is substantially coplanar with the wall, the plane being perpendicular to a longitudinal axis that is centrally positioned within the doorway, the longitudinal axis intersecting and being perpendicular to a vertical axis, the longitudinal axis and vertical axis interesting and being perpendicular to a lateral axis that is horizontal, the weather barrier comprising:an upper bellows defining a header air chamber between a top portion and a bottom portion of the upper bellows, the top portion being mounted at an elevation near an upper edge of the doorway, the upper bellows being vertically expandable from a raised position to a lowered position, the bottom portion being closer to the top portion when the upper bellows is in the raised position than when the upper bellows is in the lowered position, the upper bellows being horizontally elongate when the upper bellows is in the raised position;
a blower in fluid communication with the header air chamber, the blower being selectively activated to discharge a pressurized air into the header air chamber, the pressurized air urging the upper bellows toward the lowered position;
a first extension spring under a first extension spring tension;
a first pulley; and
a first elongate member that is pliable, the first elongate member being under a first elongate member tension that urges the upper bellows toward the raised position, the first elongate member being connected to the bottom portion of the upper bellows, the first elongate member being wrapped at least partially around the first pulley, the first extension spring being connected to the first pulley, the first pulley to transmit the first extension spring tension to the first elongate member to subject the first elongate member to the first elongate member tension, the first extension spring tension being appreciably greater than the first elongate member tension.

US Pat. No. 10,053,904

LOADING DOCK AUTHORIZATION-REMOTE CONTROL

Rite-Hite Holding Corpora...

1. A distribution center authorization apparatus for use in a distribution center having at least one dock for exchanging materials with a respective trailer comprising:a remote control configured to receive an authorization input and generate an associated activation signal, wherein the authorization input is at least one of a mobile equipment authorization and a user identification input;
at least one dock component located at the dock and configured to actuate in response to the associated activation signal; and
a central hub separate from the remote control and programmed to monitor and track the progress of the remote control through a workflow protocol.

US Pat. No. 10,251,312

COOLING SYSTEMS FOR DEVICES ARRANGED IN ROWS

Rite-Hite Holding Corpora...

1. A cooling system, comprising:an inflatable air duct to be positioned above a cold aisle defined between two rows of electronic equipment, the inflatable air duct to extend along a length of the cold aisle, the inflatable air duct to be air permeable to deliver conditioned air into the cold aisle, the electronic equipment having fans to force cool air within the cold aisle through the electronic equipment to adjacent hot aisles on opposite sides of the two rows of the electronic equipment, the inflatable air duct to be spaced apart from the rows of the electronic equipment such that the cold aisle is in unobstructed fluid communication with the adjacent hot aisles over tops of the rows of the electronic equipment, the conditioned air delivered from the inflatable air duct to reduce a mixing of warm air in the hot aisles with the cool air in the cold aisle; and
a nozzle to be attached to a wall of the inflatable air duct, the nozzle providing a discharge path for the conditioned air from an interior of the inflatable air duct toward the cold aisle, the nozzle to guide a discharge current of air through the discharge path, the wall surrounding the nozzle to be air permeable, the discharge current of air to entrain the conditioned air passing through the air permeable wall, a velocity of the discharge current of air to be insufficient to entrain ambient air above the two rows of the electronic equipment.

US Pat. No. 9,927,139

PLIABLE-WALL AIR DUCTS WITH INTERNAL EXPANDING STRUCTURES

RITE-HITE HOLDING CORPORA...

1. An air duct system for handling air selectively at an active air pressure and at an inactive ambient air pressure, the air duct system comprising:an air duct having a tubular shape to define a longitudinal direction, the air duct including a pliable sidewall; and
a framework disposed at least partially inside the air duct, the pliable sidewall being held in tension in the longitudinal direction by virtue of at least a portion of the framework being held in compression in the longitudinal direction, wherein the portion of the framework is disposed inside the air duct and extends in the longitudinal direction.

US Pat. No. 9,914,603

WEATHER BARRIERS FOR VEHICLE LOADING DOCKS

RITE-HITE HOLDING CORPORA...

1. A weather barrier for at least partially sealing or sheltering a vehicle parked at a loading dock of a building, wherein
the building has a wall facing in a forward direction toward the vehicle when the vehicle is parked at the loading dock, the
wall defining a doorway proximate a rear portion of the vehicle when the vehicle is parked at the loading dock, the doorway
having a lateral doorway edge that is vertically elongate, the weather barrier comprising:
a side support member being vertically elongate between an upper end and a lower end of the side support member, the side
support member having a back end to attach to the wall proximate the lateral doorway edge, the side support member extending
in the forward direction to a front end of the side support member;

a front sheet being vertically elongate, the front sheet including a pliable sheet, the front sheet having a proximal end
and a distal end, the proximal end to attach to the front end of the side support member, the front sheet extending in a lateral
direction from the proximal end to the distal end, the lateral direction being horizontal and perpendicular to the forward
direction, the front sheet extending in front of the doorway; and

a stay to couple to the front sheet, the stay being resiliently flexible and horizontally elongate, the stay to be positioned
closer to the loading dock of the building than the front sheet when the stay is coupled to the front sheet, the stay having
a bowed profile when coupled to the front sheet and a vehicle is not engaged with the weather barrier to subject the front
sheet to tension in a horizontal direction.

US Pat. No. 10,066,850

EXTERNALLY TENSIONED PLIABLE AIR DUCTS

RITE-HITE HOLDING CORPORA...

1. An air duct assembly comprising:an air duct formed of a pliable sidewall, the air duct having a longitudinal axis extending along a length of the air duct;
a hoop to be disposed within the air duct, the hoop to provide radial support to the air duct;
a first hanger to be coupled to the hoop and a first overhead support, the first hanger to extend away from the hoop in a first direction; and
a second hanger to be coupled to the hoop and a second overhead support, the second hanger to extend away from the hoop in a second direction different than the first direction, the first overhead support to be anchored to a fixed structure at a first point, the second overhead support to be anchored to the fixed structure at a second point different than the first point.

US Pat. No. 10,065,689

PORTABLE TRAILER STANDS

Rite-Hite Holding Corpora...

1. A portable trailer stand to support a trailer parked on a driveway, the trailer having an underside, the portable trailer stand comprising:a frame to provide the portable trailer stand with an adjustable height;
an elongate beam atop the frame, the beam to engage the underside of the trailer, the beam having a first end and a second end opposite the first end, a length of the beam between the first and second ends being substantially longer than a width of the beam, the beam defining a kingpin-receiving groove extending from the first end of the beam towards the second end, a length of the kingpin-receiving groove being greater than a width of the kingpin-receiving groove;
first and second jacks, the first and second jacks to vary the adjustable height of the portable trailer stand;
a rotatable shaft supported by the frame, the first jack including a first jackscrew, the second jack including a second jackscrew, the rotatable shaft coupled to the first jackscrew and the second jackscrew;
a disengageable coupling attached to the rotatable shaft, the disengageable coupling enables adjustment of the first jack independent of the second jack;
a block within the kingpin-receiving groove, the block to engage with a kingpin on the underside of the trailer when the portable trailer stand is supporting the trailer;
a trailer stand axle attached to the frame, the trailer stand axle positioned directly below a point on the beam that is closer to the block than to either of the first or second ends of the beam, a length of the trailer stand axle being substantially perpendicular to the length of the beam; and
a wheel mounted to the trailer stand axle.

US Pat. No. 10,208,981

EXTERNALLY TENSIONED PLIABLE AIR DUCTS

Rite-Hite Holding Corpora...

1. An air duct assembly comprising:an air duct having a pliable sidewall, the air duct being elongate in a longitudinal direction, the sidewall defining an interior of the air duct and an external area outside the air duct; and
a dual-hoop structure including a first hoop rigidly connected to a second hoop via a strut extending therebetween, the first hoop defining a first plane and the second hoop defining a second plane spaced apart from the first plane, the strut having a first end located within the first plane and a second end located within the second plane, the dual-hoop structure disposable within the air duct while supported from an overhead support member, the overhead support member being in the external area outside of the air duct, the dual-hoop structure to provide the sidewall with support in a radial direction that is substantially perpendicular to the longitudinal direction.

US Pat. No. 10,113,352

SYSTEM AND METHOD FOR OPERATING A DOCKING STATION

Rite-Hite Holding Corpora...

1. A dock control system comprising:a camera for mounting on a docking station, the camera configured to obtain at least one image of a vehicle restraint system of the docking station;
a graphical user interface configured to display the at least one image of the vehicle restraint system to an operator of the docking station to verify if a vehicle has been restrained; and
a controller configured to:
automatically activate the camera once the vehicle restraint system is engaged with a vehicle;
receive the at least one image of the vehicle restraint system from the camera; and
transmit the at least one image of the vehicle restraint system to the graphical user interface.

US Pat. No. 10,055,986

DYNAMICALLY CONFIGURABLE TRAFFIC CONTROLLERS AND METHODS OF USING THE SAME

RITE-HITE HOLDING CORPORA...

1. An apparatus, comprising:a first sensor to be directed in a first direction to detect oncoming traffic;
a first display to face the first direction;
a second sensor to be directed in a second direction to detect oncoming traffic;
a second display to face the second direction;
a third sensor to be directed in a third direction to detect oncoming traffic;
a third display to face the third direction;
a fourth sensor to be directed in a fourth direction to detect oncoming traffic;
a fourth display to face the fourth direction; and
a processor, the processor to define a first relationship between the first sensor and the second display, the first relationship to cause the second display to display a first signal in response to the first sensor identifying traffic and a second signal in response to the first sensor and the second sensor identifying traffic, the first signal indicative of a first warning level, the second signal indicative of a second warning level greater than the first warning level, the processor to cause the first signal to be displayed by the second display and for no signal to be displayed by the first display in response to traffic being identified by the first sensor and no traffic being identified by the second sensor, the processor to define a second relationship between the first sensor and the third display, the processor to define a third relationship between the first sensor and the fourth display, the second relationship to cause the third display to display the first signal in response to the first sensor identifying traffic and the second signal in response to the first sensor and the third sensor identifying traffic, the third relationship to cause the fourth display to display the first signal in response to the first sensor identifying traffic and the second signal in response to the first sensor and the fourth sensor identifying traffic.

US Pat. No. 10,227,190

METHODS AND APPARATUS FOR MONITORING A DOCK LEVELER

RITE-HITE HOLDING CORPORA...

1. A dock leveler system for use at a doorway of a loading dock, the dock leveler system comprising:a deck being movable between a raised position and a lowered position;
a sensor at the loading dock, the sensor having a field of view extending over the deck when the deck is in the lowered position, the sensor to detect a position of the deck, a body on the deck, a status of a door at the doorway of the loading dock, and a status of a rear cargo door of a vehicle, the sensor having a triggered state and a non-triggered state,
the sensor being in a non-triggered state when:
the deck is detected in the lowered position;
the body is not detected on the deck
the vehicle is detected at the loading dock; and
the rear cargo door of the vehicle is detected in an open position;
the sensor being in the triggered state when at least one of:
the deck is detected in the lowered position and the body is detected on the deck;
the deck is at a predetermined position regardless of detection of the body on the deck; or
the vehicle is detected at the loading dock and the rear cargo door of the vehicle is detected in a closed position; and
a controller to operate the deck between the raised position and the lowered position when the sensor is in the non-triggered state, and the controller to prevent operation of the deck when the sensor is in the triggered state.

US Pat. No. 10,274,216

UNDER-FLOOR PLIABLE AIR DUCT/DISPERSION SYSTEMS

RITE-HITE HOLDING CORPORA...

1. A building system, comprising:a subfloor;
a plurality of pedestals on the subfloor;
a plurality of floor panels supported by the plurality of pedestals such that the plurality of floor panels is above the subfloor to define a plenum there between;
a supply air duct below the plurality of floor panels;
a supply air register on the plurality of floor panels;
a self-contained distribution air duct within the plenum underneath the plurality of floor panels, the distribution air duct includes a circumferentially enclosed tubular wall having an inner surface and an outer surface and formed of a unitary pliable material such that the distribution air duct is inflatable and collapsible, a bottom portion of the outer surface of the tubular wall resting upon the subfloor when the air duct is installed within the plenum, the distribution air duct including a proximal end and a distal end, the proximal end being connectable to the supply air duct such that air from the supply air duct can pass in series through the proximal end, toward the distal end, out from within the distribution air duct, into the plenum, up through the supply air register, and into a comfort zone; and
a fastener connecting the distal end to a first pedestal of the plurality of pedestals supporting the plurality of floor panels, the fastener to tension the distribution air duct along a longitudinal axis of the distribution air duct, the fastener also connecting the distal end to a second pedestal of the plurality of pedestals.

US Pat. No. 10,276,042

DYNAMICALLY CONFIGURABLE TRAFFIC CONTROLLERS AND METHODS OF USING THE SAME

Rite-Hite Holding Corpora...

1. An apparatus, comprising:a first sensor to face a first direction to detect oncoming traffic in a first area;
a second sensor to face a second direction to detect oncoming traffic in a second area; and
a first display to face the first area, the first display to display a first signal in response to (1) the first sensor not detecting the oncoming traffic in the first area and (2) the second sensor detecting the oncoming traffic in the second area, the first display to display a second signal in response to (1) the first sensor detecting the oncoming traffic in the first area and (2) the second sensor detecting the oncoming traffic in the second area, the first signal being different than the second signal.

US Pat. No. 10,302,295

ILLUMINATING FANS FOR LOADING DOCKS

RITE-HITE HOLDING CORPORA...

1. An illuminating fan comprising:a housing including a first shell attached to a second shell, the housing defining an airflow chamber between the first shell and the second shell, the housing also defining an electrical chamber between the first shell and the second shell;
a dividing wall between the airflow chamber and the electrical chamber;
a fan wheel mounted for rotation within the airflow chamber;
a fan motor coupled to the fan wheel, the fan wheel to generate a current of air passing through the airflow chamber when the fan wheel is rotated by the fan motor;
a lamp supported by the housing;
an electrical circuit wired to the lamp, the electrical circuit being at least partially contained within the electrical chamber;
an end piece attached to the housing, the end piece including a lens and a grill, light emitted from the lamp to pass through the lens, the current of air to exit the airflow chamber through the grill; and
a metal heat sink in heat transfer relationship with the lamp and the airflow chamber through which the current of air is to pass.