US Pat. No. 9,206,576

COMPACTOR ROLLER FOR A SOIL COMPACTOR

HAMM AG, Tirschenreuth (...

1. A compactor roller for a soil compactor comprising;
at least one change holder on the outer circumference for attaching a roller tool,
wherein at least one roller tool to be fastened on a change holder comprises a counter-holder that can be engaged and retained
with a change holder and locked relative to the change holder,

wherein the change holder comprises a holder opening and the counter-holder comprises a holder shaft that can be inserted
into the holder opening,

wherein at least one change holder has a connection area adapted to the curved outer circumference of the compactor roller
for connecting to an outer peripheral surface of the compactor roller and a support area configured to support a roller tool
and arranged at a distance from the outer peripheral surface of the compactor roller, and

wherein in the support area, the holder opening is surrounded at the change holder by a first support surface that is essentially
orthogonal with respect to a radial direction relative to an axis of rotation of the compactor roller.

US Pat. No. 9,340,932

SOIL COMPACTOR WITH STORAGE SPACE

HAMM AG, Tirschenreuth (...

1. A soil compactor, comprising:
a compaction roller supported on a compaction frame and rotatable around a rotational axis, said compaction frame comprising
longitudinal frame areas on both sides of said compaction roller in the direction of the rotational axis and a first cross
frame area connecting said longitudinal frame areas to each other and extending essentially in the direction of the rotational
axis;

at least one storage space provided in the first cross frame area said at least one storage space being open in upward direction
by means of an upper opening area and being open in a direction facing away from said compaction roller by means of a lateral
opening area; and

a locking element movable between a closed position and an open position for closing said at least one storage space in the
closed position, said locking element comprising

a first locking element section closing said lateral opening area in the closed position, and
a second locking element section bent at an angle with respect to said first locking element section and locking said upper
opening area in the closed position,

said first locking element section being pivotably connected to said first cross frame area in an area located underneath
said lateral opening area, and

a work step being providing by said second locking element section being essentially horizontally oriented when said locking
element is positioned in the open position.

US Pat. No. 9,284,696

COMPACTOR ROLLER FOR A SOIL COMPACTOR

HAMM AG, Tirschenreuth (...

1. A compactor roller for a soil compactor, comprising:
an oscillation mass assembly including at least one oscillation shaft which is rotatable about an oscillation-shaft axis of
rotation which is eccentric to a compactor-roller axis of rotation, and including at least one oscillation unbalance mass
and a vibration mass assembly including a vibration shaft rotatable about a vibration-shaft axis of rotation, which vibration
mass assembly includes at least one vibration unbalance mass

wherein at least one oscillation shaft and the vibration shaft are carried in the compactor roller such that they can be driven
to rotate, and

wherein a shaft drive is provided for driving at least one oscillation shaft to rotate about its oscillation-shaft axis of
rotation, wherein the shaft drive comprises a drive motor and a transmission drive assembly, wherein a rotational speed translation
ratio of the transmission drive assembly varies depending on a rotational speed of the compactor roller about the compactor-roller
axis of rotation.

US Pat. No. 9,222,226

DEVICE FOR DETECTING THE MOTION OF A COMPACTOR ROLLER OF A SOIL COMPACTOR

HAMM AG, Tirschenreuth (...

1. A device for detecting the motion of a compactor roller of a soil compactor rotatable about an axis of rotation, said roller
comprising on the inside of a roller mantle a plurality of motion sensors arranged in the circumferential direction around
the axis of rotation and at a spacing from each other and moveable with the roller mantle around the axis of rotation.

US Pat. No. 9,422,675

COMPACTOR

Hamm AG, Tirschenreuth (...

1. A compactor comprising:
at least one compactor roller that can be rotated around a roller axis of rotation,
at least one edge shaping device,
a fluid reservoir/delivery system for storing and delivering fluid to at least one compactor roller and at least one edge
shaping device,

wherein the fluid reservoir/delivery system comprises two first fluid pumps for pumping fluid to at least one first fluid
delivery unit assigned to a respective compactor roller and one second fluid pump for pumping fluid to at least one second
fluid delivery unit assigned to a respective edge shaping unit,

wherein the two first fluid pumps are connected parallel to each other for delivering fluid to a common first fluid delivery
line supplying fluid to each of the at least one first fluid delivery unit, and

wherein the second fluid pump delivers fluid into a second fluid line supplying fluid to the at least one second fluid delivery
unit.

US Pat. No. 9,376,775

CHANGE HOLDER ASSEMBLY FOR A COMPACTOR ROLLER FOR A SOIL COMPACTOR

HAMM AG, Tirschenreuth (...

1. A change holder assembly for a compactor roller for a soil compactor, comprising:
a change holder to be fixed on a roller casing; and
at least one roller tool to be fixed on the change holder using a counterholder, which can be caused to engage with the change
holder and is lockable with respect to the change holder;

wherein the change holder has a roller-tool-abutment side and the at least one roller tool has a change holder-abutment side
supportable on the roller-tool abutment side;

wherein on at least one side of roller-tool-abutment side and change holder-abutment side at least one anti-rotation lug and
on the other side of roller-tool-abutment side and change holder-abutment side at least one anti-rotation recess for receiving
an anti-rotation lug are provided;

wherein the change holder or the counterholder comprises a holder opening and that the counterholder or the change holder
comprises a holder shaft which is insertable into the holder opening;

wherein at least one region at the side of the holder opening at least one of an anti-rotation recess and an anti-rotation
lug is provided and in at least one region at the side of the holder shaft at least one of an anti-rotation lug and an anti-rotation
recess is provided;

wherein in a first region at the side of the holder opening at least one of an anti-rotation recess and an anti-rotation lug
is provided, and in a second region opposite the first region at the side of the holder opening at least one of an anti-rotation
recess and an anti-rotation lug is provided, and that in a first region at the side of the holder shaft at least one of an
anti-rotation lug and an anti-rotation recess is provided and in a second region opposite the first region at the side of
the holder shaft at least one of an anti-rotation lug and an anti-rotation recess is provided.

US Pat. No. 9,266,424

DRIVE ASSEMBLY, IN PARTICULAR FOR A CONSTRUCTION MACHINE, A SUBASSEMBLY FOR A DRIVE ASSEMBLY AND A CONSTRUCTION MACHINE COMPRISING THE SAME

HAMM AG, Tirschenreuth (...

1. A drive assembly for a construction machine, comprising:
a drive unit having a plurality of first fastening regions to be attached to a machine frame;
at least one functional unit that interacts with the drive unit; and
a functional unit carrier assigned to said functional unit;
wherein the functional unit carrier can be swiveled around at least one swivel axis with respect to the drive unit in a swivel
connection region;

wherein two functional units and functional unit carriers respectively assigned to them are provided, whereby at least one
of the functional unit carriers can be swiveled around at least one swivel axis with respect to the drive unit; and

wherein a first functional unit carrier is connected to the drive unit pivotable around a first swivel axis in a first swivel
connection region, and a second functional unit carrier is connected to the first functional unit carrier pivotable around
a second swivel axis in a second swivel connection region.

US Pat. No. 9,127,428

SHEATHING ARRANGEMENT FOR A SOIL-WORKING ROLLER, IN PARTICULAR FOR A SELF-PROPELLED SOIL COMPACTOR

HAMM AG, Tirschenreuth (...

1. Sheathing arrangement for a soil-working roller (10), comprising:
a plurality of sheathing members (22) connected or connectable immediately consecutive in chain-type fashion in a longitudinal direction of the arrangement (L),

wherein in the longitudinal direction of the arrangement (L), immediately consecutive sheathing members (22) are pivotally connected by at least one first coupling element (36),

wherein at least one belt-type second coupling member (62) extends along all of the sheathing members (22) in the longitudinal direction of the arrangement (L),

wherein the sheathing members (22) can be positioned in a ring-type closed configuration by the at least one second coupling element (61), and

wherein at a first sheathing member (22?), a locking arrangement (63) is provided to lock the first sheathing member (22?) against at least circumferential movement at an external circumference of the soil-working roller (10).

US Pat. No. 9,550,437

SEAT FOR A DRIVER OF A CONSTRUCTION MACHINE, CONSTRUCTION MACHINE, AS WELL AS METHOD FOR ADJUSTMENT OF A SEAT

Hamm AG, (DE)

1. A road roller with a seat for a driver, comprising:
a movable seat carriage;
a steering column movable together with the seat carriage;
a drive motor;
a transmission element extending between the seat carriage and the drive motor so that the seat carriage is movable in at
least one shifting direction by power from the drive motor;

a controller to control the drive motor; and
wherein at least one of the seat carriage and the drive motor is configured to be selectively decoupled from the transmission
element to allow rapid manual movement of the seat carriage in case of long paths of travel between an outermost left position
and an outermost right position as seen in a direction of travel.

US Pat. No. 9,512,575

SOIL COMPACTOR

Hamm AG, Tirschenreuth (...

1. A soil compactor comprising:
at least one compactor roller rotatable about a rotational roller axis, and
a liquid storage/dispensing system for storing and dispensing liquid to the at least one compactor roller, the liquid storage/dispensing
system comprising at least two main liquid storages and main liquid pipes associated with the at least two main liquid storages,
wherein the main liquid pipes of the at least two main liquid storages are in connection with a common filling connection
for a parallel filling of the at least two main liquid storages associated with the common filling connection.

US Pat. No. 9,169,604

SELF-PROPELLED COMPACTION ROLLER AND METHOD FOR OPERATING A SELF-PROPELLED COMPACTION ROLLER

HAMM AG, Tirschenreuth (...

1. A self-propelled compaction roller comprising a drive system having
a drive assembly,
a hydrostatic/mechanical transmission arrangement with a hydraulic pump, which is drivable by a primary drive assembly, and
with a hydraulic motor, the primary drive comprising a primary drive shaft,

a supporting drive arrangement with a charging/driving unit and an energy storage unit, wherein the charging/driving unit
is operable in a charging mode in order to store energy in the energy storage unit and is operable in a supporting mode by
withdrawing energy from the energy storage unit in order to provide a supporting torque,

wherein the charging/driving unit is coupled to a power takeoff of the drive assembly, the power takeoff comprising a power
takeoff shaft.

US Pat. No. 9,592,758

SEAT FOR A DRIVER OF A CONSTRUCTION MACHINE

Hamm AG, (DE)

1. A seat apparatus for a driver of a construction machine, comprising:
a seat console;
a seat surface supported from the seat console;
a seat backrest supported from the seat console;
at least one armrest; and
an armrest support configured to support the armrest in an adjustable basic position with the armrest located next to the
seat surface and extending frontwards, the armrest support including:

at least one first adjustable connection unit connecting the armrest support to the armrest; and
at least one second adjustable connection unit connecting the armrest support to the seat console.

US Pat. No. 9,499,947

DRIVE SYSTEM, IN PARTICULAR FOR A SELF-PROPELLED CONSTRUCTION MACHINE, ESPECIALLY A SOIL COMPACTOR

HAMM AG, Tirschenreuth (...

1. A drive system for a self-propelled construction machine, comprising:
a drive unit,
at least one hydraulic circuit with a hydraulic pump drivable by the drive unit,
a hydraulic drive support unit with a hydraulic pump/motor assembly and at least one compressed fluid reservoir, wherein the
hydraulic pump/motor assembly is, or can be, drivingly connected to the drive unit and/or to at least one hydraulic circuit,
wherein the hydraulic pump/motor assembly is drivable in a charging operating mode as a pump by means of the drive unit and/or
by means of at least one hydraulic circuit for charging at least one compressed fluid reservoir, and in a drive support state
is drivable as a motor to provide a drive support torque for the hydraulic pump of at least one hydraulic circuit,

wherein a maximum drive torque provided by the drive unit is smaller than a maximum request torque to be applied for operating
at least one hydraulic circuit,

wherein the hydraulic pump/motor assembly in the charging operating mode is only essentially driven by the drive unit operated
for driving at least one hydraulic circuit when the charge state of at least one of the compressed fluid reservoirs is not
above a predetermined threshold charge.

US Pat. No. 9,777,443

SELF-PROPELLING ROAD CONSTRUCTION MACHINE, PARTICULARLY ROAD ROLLER, AND METHOD FOR DRIVING A ROAD CONSTRUCTION MACHINE

Hamm AG, Tirschenreuth (...

1. A self-propelling road construction machine, particularly a road roller, comprising
a travel drive,
a steering device,
a control device for the travel drive and the steering device, and
a driver's seat rotatable by at least 180° and including an integrated operating element for the vehicle speed,
the operating element generating the control signals for the travel drive to achieve a vehicle speed to be set in dependence
on the direction of the control movement of the operating element or the direction of force application on the operating element,

wherein the control device is operative, in response to a first switching command, to automatically perform a reversing process
comprising, in order, a deceleration of the road construction machine, a seat rotation of the driver's seat during the deceleration,
a change of direction of travel of the road construction machine, and an acceleration of the road construction machine to
the set vehicle speed in an opposite direction to the original direction of travel.

US Pat. No. 9,650,747

DEVICE AND PROCEDURE TO DETERMINE A SIZE OF CONTACT REPRESENTING THE CONTACT STATE OF A COMPACTOR ROLLER UPON THE SUBSTRATE TO BE COMPACTED

HAMM AG, Tirschenreuth (...

1. A self-propelled compactor comprising:
a device to determine a size of contact representing a contact state between a compactor roller and a substrate to be compacted
by the compactor, the device comprising:

the compactor roller, which is coupled to the compactor and rotatable in at least one acquisition circumference area around
a compactor roller axis upon movement of the compactor in a direction; and

at least one contact sensor generating a contact signal, wherein the contact signal indicates a contact start and a contact
end of an acquisition circumference area upon the substrate to be compacted.

US Pat. No. 9,382,673

QUICK-CHANGE TOOL HOLDER FOR A COMPACTION DRUM FOR A SOIL COMPACTOR

HAMM AG, Tirschenreuth (...

1. A quick-change tool holder for the attachment of a drum tool to a compaction drum of a soil compactor comprising a quick-change
tool holder body having a central region wherein a holder opening for receiving a holder shaft of a drum tool is provided
in the central region and two leg portions originating at the central region for firmly connecting the quick-change tool holder
body to the outer periphery of the compaction drum, the central region and the leg portions surrounding an open inner space
of the quick-change tool holder extending over at least one side opening,
wherein a closing element, which can be inserted in association with at least one side opening, is provided,
wherein two closing elements can be locked into two side openings essentially opposing one another by securing them to one
another relative to the quick-change tool holder body,

wherein on each closing element a locking region for a locking interaction with a counter-locking region of a drum tool to
be locked onto the quick-change tool holder body is provided,

wherein the locking region comprises a locking engagement region to engage in a locking recess of the counter-locking region
provided on the holder shaft of a drum tool,

wherein the locking engagement regions of two closing elements can be positioned as engaging in the locking recess of the
counter-locking region at least sectionally surrounding the holder shaft of a drum tool.

US Pat. No. 10,214,865

EARTH WORKING ROLLER

Hamm AG, Tirschenreuth (...

1. An earth working roller for use in an earth working machine comprising a roller drum, which extends in a direction along a roller axis of rotation, surrounds a roller interior, and has a circular outer circumferential contour, wherein a substrate breaking configuration is provided on an outer circumferential surface of the roller drum, wherein the substrate breaking configuration comprises a plurality of impact bars along the roller drum in the direction of the roller drum axis of rotation, as well as a plurality of breaker bars along the roller drum in a circumferential direction, wherein the maximum radial height of a projection of at least some of the impact bars across the outer circumferential surface of the roller drum is greater than the maximum radial height of a projection of at least some of the breaker bars across the outer circumferential surface of the roller drum.

US Pat. No. 9,822,736

SELF-PROPELLED CONSTRUCTION DEVICE, IN PARTICULAR A SOIL COMPACTOR

HAMM AG, Tirschenreuth (...

1. A self-propelled construction device comprising:
a turbocharged diesel engine with a first radiator arrangement to cool charge air and a second radiator arrangement to cool
coolant and/or hydraulic oil, with a first radiator fan being allocated to the first radiator arrangement and a second radiator
fan being allocated to the second radiator arrangement and the first radiator fan and the second radiator fan being able to
be operated independently from each other;

wherein the first radiator arrangement and the second radiator arrangement are arranged at a secondary energy take-off side
of the diesel engine;

wherein the first radiator arrangement is arranged such that a radiator level thereof is oriented vertically for obtaining
a horizontal flow of cooling air; and

wherein the second radiator arrangement, starting from its area near the first radiator arrangement, extends diagonally downward
and in the direction away from the secondary energy take-off side of the diesel engine, such that a radiator level thereof
extends diagonally in reference to a vertical line.

US Pat. No. 9,476,761

SYSTEM FOR MAKING AVAILABLE INFORMATION WHICH REPRESENTS A VIBRATION STATE FOR THE OPERATION OF VIBRATION-EMITTING MACHINES, IN PARTICULAR CONSTRUCTION MACHINES

HAMM AG, Tirschenreuth (...

1. System for providing information representing a vibration state for the operation of vibration-emitting construction machines,
said system comprising:
at least one measuring station with at least one sensor for recording at least one variable related to the vibration state,
and with a radio-transmitting unit for outputting a radio output signal related to the variable;

at least one reception station for receiving the radio output signal of the at least one measuring station;
wherein the at least one measuring station comprises an evaluation unit for receiving a sensor signal from the at least one
sensor for generating an evaluation signal representing the vibration state based on the sensor signal;

wherein the radio-transmitting unit generates the radio output signal on the basis of the evaluation signal; and
wherein a plurality of measuring stations and/or reception stations is provided, at least one measuring station and/or at
least one reception station having a radio-receiving unit for receiving the radio output signal of at least one other measuring
station, the radio-transmitting unit of the at least one measuring station having a radio-receiving unit and/or a radio-transmitting
unit of the at least one reception station having a radio-receiving unit being arranged for generating a radio output signal
based on a radio output signal received from another measuring station and/or from another reception station.

US Pat. No. 10,059,184

DRIVE SYSTEM, IN PARTICULAR FOR A SELF-PROPELLED CONSTRUCTION MACHINE, IN PARTICULAR A SOIL COMPACTOR

HAMM AG, Tirschenreuth (...

1. A drive system, comprising:a drive unit comprising an internal combustion engine,
at least one hydraulic circuit with a hydraulic pump driven by the drive unit,
a hydraulic-drive support unit with a hydraulic pump/motor assembly and at least one high pressure fluid reservoir, wherein the hydraulic pump/motor assembly can be drivingly coupled with the drive unit or/and at least one hydraulic circuit, wherein the hydraulic pump/motor assembly can be operated in a charging operating mode by the drive unit or/and at least one hydraulic circuit as a pump to charge the at least one high pressure fluid reservoir and be operated in a drive support operating mode as a motor to provide a drive support torque for the hydraulic pump of at least one hydraulic circuit,
wherein the hydraulic pump/motor assembly can be operated in a starting operating mode as a motor to start the drive unit,
wherein the hydraulic drive support unit comprises a starting valve unit to selectively release/interrupt a flow connection between the at least one high pressure fluid reservoir and the hydraulic pump/motor assembly at least in the flow direction from the at least one high pressure fluid reservoir to the hydraulic pump/motor assembly,
wherein a flow restriction arrangement is provided in a flow path between the at least one high pressure fluid reservoir and the starting valve unit or/and in a flow path between the starting valve unit and the hydraulic pump/motor assembly.

US Pat. No. 9,869,601

DEVICE FOR DETECTING THE MOTION OF A COMPACTOR ROLLER

Hamm AG, Tirschenreuth (...

1. A device for detecting the motion of a rotatable compactor roller about a compactor roller axis of rotation comprising
at least one motion sensor and an energy supply for the at least one motion sensor, wherein the energy supply comprises a
generator having a stator and a rotor rotatable about a rotor axis of rotation with respect to the stator;
wherein the rotor is driven via a drive of an unbalance mass assembly in the compactor roller, by being rotated about the
rotor axis of rotation.

US Pat. No. 9,982,397

METHOD FOR PLANNING AND IMPLEMENTATION OF SOIL COMPACTING PROCESSES, ESPECIALLY FOR ASPHALT COMPACTING

HAMM AG, Tirschenreuth (...

1. A method for planning and implementation of a compacting process for building a road, by means of at least one compactor, comprising the following steps:a) defining a base region to be compacted, wherein the base region is defined between two edge regions extending in a base region longitudinal direction of the road and wherein at least one of said edge regions is determined by an asphalt finisher applying asphalt material to be compacted by at least one compactor onto the base region while moving the asphalt finisher along the base region to be compacted in the base region longitudinal direction and thereby prepares it preparing the base region;
b) based on the base region defined in step a), defining a compacting plan with quantity and course of compactor passes in the base region, wherein at least a portion of compacting passes are defined to extend in the base region longitudinal direction;
wherein, in association with at least one of the edge regions, at least one of the compactor passes is defined such as to extend flush or overlapping with and along this edge region, and
c) moving the at least one compactor in the base region defined in step a) according to the compacting plan defined in step b).

US Pat. No. 10,011,191

SEAT FOR A CONSTRUCTION MACHINE, AND CONSTRUCTION MACHINE

Hamm AG, (DE)

1. A seat apparatus for a construction machine, the construction machine having a direction of travel, the seat apparatus comprising:a seat;
a seat console;
a lateral displacement support assembly supporting the seat in an adjustable lateral position for lateral displacement relative to the seat console in a transverse direction relative to the direction of travel so that the seat can be located in a plurality of lateral positions;
a rotational support assembly supporting the seat in an adjustable rotational angle for rotational movement of the seat through a rotational range relative to the seat console in each of the plurality of lateral positions; and
a stop limiter configured to limit a maximum allowable value of the rotational angle of the seat in a variable manner in dependence on the lateral position of the seat.

US Pat. No. 10,006,175

SOIL COMPACTOR AND METHOD FOR COMPACTING SUBSTRATES

Hamm AG, Tirschenreuth (...

1. A soil compactor, comprising at least one compacting roller rotatable about an axis of rotation, wherein:a temperature detecting device for providing temperature information representing a temperature of a substrate in the area of the soil compactor,
a sprinkling arrangement assigned to at least one compacting roller for sprinkling this compacting roller with fluid,
a control device for controlling at least one sprinkling device and/or for generating a sprinkling indicator on the basis of the temperature information, and
a roller temperature detecting device, assigned to the at least one compacting roller to provide roller temperature information indicating a temperature of the at least one compacting roller, and that the control device is designed for controlling the at least one sprinkling device and/or for generating the sprinkling indicator or a stop-sprinkling indicator on the basis of the roller temperature information.

US Pat. No. 9,995,007

DRIVE SYSTEM, IN PARTICULAR FOR A SELF-PROPELLED CONSTRUCTION MACHINE, IN PARTICULAR A SOIL COMPACTOR

Hamm AG, Tirschenteuth, ...

1. A self-propelled construction machine having a drive system, said drive system comprising:a drive unit;
at least one hydraulic circuit with a hydraulic pump driven by the drive unit,
a hydraulic drive support unit with a hydraulic pump/motor assembly and at least one pressure fluid reservoir, wherein the hydraulic pump/motor assembly is, or can be, drivingly coupled with the drive unit or/and at least one of the at least one hydraulic circuit, wherein the hydraulic pump/motor assembly can be driven in a charge operating mode by the drive unit and at least one of the at least one hydraulic circuit as a pump to charge at least one of the at least one pressure fluid reservoir to a maximum charge and can be operated in a drive support operating mode as a motor to provide a drive support torque for the hydraulic pump of at least one of the at least one hydraulic circuit;
at least one fluid reservoir;
wherein the hydraulic pump/motor assembly can be operated in a recirculation operating mode as a pump to convey fluid out of a fluid reservoir of the at least one fluid reservoir and into the same, or another fluid reservoir of the at least one fluid reservoir;
wherein the hydraulic pump/motor assembly is operated to provide the recirculation operating mode when the charging mode of at least one of the at least one pressure fluid reservoir is above a threshold charge below said maximum charge and a drive speed of the drive unit is below a threshold speed.

US Pat. No. 9,915,040

SOIL COMPACTOR

Hamm AG, Tirschenreuth (...

1. Soil compactor comprising a compaction roller rotatably supported by a compaction roller frame, wherein the compaction
roller frame comprises two longitudinal members arranged in a direction longitudinal to the compactor on both sides of the
compaction roller and supporting said compaction roller, and, connecting the two longitudinal members together, two cross
members arranged in a direction perpendicular to the compactor and along both sides of the compaction roller, wherein the
compaction roller frame is connected to a compactor main frame via one of the two cross members, and wherein at least one
sight opening is provided within the other of the two cross members, wherein the at least one sight opening is essentially
open upward in a direction vertical to the compactor, and wherein the upper area of the at least one sight opening is furnished
with at least one brace bridging said sight opening in a direction perpendicular to the compactor, and further wherein the
at least one brace has a smaller cross-sectional area than the other cross member in the area of the at least one sight opening.

US Pat. No. 9,645,071

METHOD TO DETERMINE A SLIP STATE OF THE COMPACTOR ROLLER OF A SOIL COMPACTOR CAUSED BY AN OSCILLATION MOTION OF A SOIL COMPACTOR

HAMM AG, Tirschenreuth (...

1. Method to determine a slip state of the compactor roller of a soil compactor caused by an oscillation motion of a compactor
roller, comprising the steps:
a) preparing an acceleration quantity related to the oscillation motion of the compactor roller based on an acceleration of
the compactor roller essentially in a direction parallel to a surface of a soil being compacted;

b) based on the acceleration quantity, preparing an acceleration frequency spectrum; and
c) based on the acceleration frequency spectrum, determining the slip state of the compactor roller by determining a slip
indicator representing the slip state of the compactor roller, wherein said slip indicator is determined based on a ratio
of the amplitude of the acceleration-frequency spectrum at a first frequency to the amplitude of the acceleration-frequency
spectrum at a second frequency.

US Pat. No. 9,670,628

GROUND PREPARATION MACHINE, IN PARTICULAR A COMPACTOR

Hamm AG, Tirschenreuth (...

1. A ground preparation machine, in particular a compactor, comprising:
at least one roller rotatable around an axis of rotation of a roller,
attached to at least one roller, at least one scraper device for scraping off material adhering to the outer peripheral region
of the roller,
wherein the scraper device comprises a scraper bar extending along the roller, the scraper bar being designed to provide a
first scraper region for scraping material from a roller having an essentially untextured outer peripheral region and being
designed to provide a second scraper region for scraping material from a roller having a textured outer peripheral region,and further wherein scraper bar is movable among:
a first operating position, wherein, in the first operating position, the first scraper region is in scraping interaction
with the roller,

a second operating position different from the first operating position, wherein, in the second operating position, the second
scraper region is in scraping interaction with the roller, and

an installation/removal position, wherein, in the installation/removal position, the scraper bar is positioned for installation/removal
and/or for adjustment of at least one first scraper member of the first scraper region and/or of at least one second scraper
member of the second scraper region.

US Pat. No. 10,024,003

SOIL COMPACTOR

Hamm AG, Tirschenreuth (...

1. A soil compactor, comprising at least one compactor roller rotatable about an axis of rotation of the roller and having a plurality of roller segments following one another along the direction of the axis of rotation of the roller, each roller segment having exclusively assigned therewith at least one electromotive drive for producing an oscillating torque applied to this roller segment,wherein the at least one electromotive drive is configured as an external rotor motor with a stator and a rotor, which surrounds the stator and is coupled with the assigned roller segment, for a joint rotation about the axis of rotation of the roller,
wherein a roller axle, which extends along the axis of rotation of the roller, is provided at a compactor frame in such a way that the roller axle does not rotate about the axis of rotation of the roller, the roller segments being supported so that they rotate about the roller axle, and
wherein the stator of each external rotor motor is carried on the roller axle.

US Pat. No. 10,214,087

GROUND PROCESSING MACHINE, IN PARTICULAR COMPACTOR

Hamm AG, Tirschenreuth (...

1. Ground compactor, comprising:a rear carriage with an internal combustion engine,
respectively a drive wheel to both sides of the internal combustion engine,
a driver cabin arranged offset relative to the internal combustion engine in a longitudinal direction of the machine which is along a forward travel direction of the ground compactor,
a front carriage is connected with the rear carriage so as to be pivotable, wherein at the front carriage a floor processing roller can be rotated around a roller rotation axis extending in the transversal machine direction,
a fuel tank for fuel to be supplied to the internal combustion engine,
an additive substance tank,
a hydraulic fluid tank,
wherein the fuel tank is arranged next to the internal combustion engine in the longitudinal machine direction, and in a central region of the rear carriage in the transversal machine direction,
wherein the additive substance tank is arranged next to one of the drive wheels in the longitudinal machine direction, and overlapping to the one drive wheel in a transversal machine direction, and is arranged next to the fuel tank and not overlapping the fuel tank in the longitudinal machine direction,
wherein a fuel tank filler neck of the fuel tank is arranged with its length direction extending in the transversal machine direction at least in areas between the additive substance tank and the one drive wheel,
wherein the additive substance tank and the fuel tank are arranged overlapping at least in part in the longitudinal machine direction.