US Pat. No. 9,285,056

ELECTROPNEUMATIC FIELD DEVICE

SAMSON AKTIENGESELLSCHAFT...

1. An electropneumatic field device system for supply with pneumatic energy, comprising:
a valve;
a pneumatic actuator for receiving said pneumatic energy and connected to actuate the valve;
an electropneumatic field controller controlling said pneumatic actuator by controlling said pneumatic energy to said pneumatic
actuator;

an energy converter for converting the pneumatic energy also supplied to the pneumatic actuator into electrical energy;
said energy converter comprising
an oscillating permanent magnet that receives a compressed air pulse to perform a forward motion,
a return transmitting a return force to the oscillating permanent magnet resulting in a return motion opposite to the forward
motion, an electrical voltage being induced in a coil of the energy converter by the forward and return motions of the oscillating
permanent magnet,

the return being designed to generate a magnetic field that is polarized with respect to the oscillating permanent magnet
such that a magnetic repulsion return force induces the return motion; and

a pressure controller for supplying said pneumatic energy to the energy converter.

US Pat. No. 9,157,440

METHOD AND SYSTEM FOR CONTROLLING A PROCESS FLUID STREAM AND POSITIONER

Samson Aktiengesellschaft...

1. A method for controlling a process fluid stream within an industrial process plant, comprising the steps of:
providing a pump in series with a control valve having an associated positioner to control said fluid stream;
setting a required fluid passage quantity for said process fluid stream by positioning said control valve with said positioner
into a respective valve position and capturing an actual position of said valve;

determining a physically sensible actual property value related to passage of the process fluid through the control valve;
evaluating the actual property value as well as the actual valve position by an evaluation routine with respect to a predetermined
optimization parameter specific to the valve with the associated positioner; and

if a deviation occurs from the optimization parameter, tuning a pump drive value for said pump and a control valve position
drive value for said valve positioner to each other in such a way that the optimization parameter is approached without substantially
altering a fluid passage quantity through the valve controlled according to said required fluid passage quantity by slowing
a speed of the pump combined with opening the control valve further or increasing a speed of the pump combined with closing
the control valve further.

US Pat. No. 9,523,365

DECOUPLING OF CONTROLLED VARIABLES IN A FLUID CONVEYING SYSTEM WITH DEAD TIME

KSB Aktiengesellschaft, ...

1. A method for closed-loop-control of a fluid conveying system, comprising the steps of:
providing at least one pump, at least one consumer connected to the at least one pump, at least one control valve connected
to the at least one consumer, and at least one armature connected to said at least one control valve as an actuator of said
at least one control valve;

controlling a pressure and a volume flow rate of the at least one consumer independently of each other using a decoupling
controller connected to control at least one of: said at least one pump and said at least one armature; and

the decoupling controller performing a decoupled control operation with a control rule r (x) according to

wherein D* is a decouplability matrix, a is a coefficient, x is a declaration of a state space vector, k is an index of summation,
m is a number of inputs and outputs, r is a controller parameter with i being an index of the decoupled subsystem, Lf is a Lie-derivative of a function h, the function h is along a vector field of the fluid, and c* is


US Pat. No. 9,528,623

POSITIONING DEVICE FOR A PROCESS PLANT

SAMSON AKTIENGESELLSCHAFT...

13. A positioning device for a process plant, comprising:
a valve comprising a valve housing, a valve seat, and a valve member actuated by use of a lead-through opening in the valve
housing;

a top configured to screw onto the lead-through opening and to rigidly couple the valve housing to an actuator;
a deformation buffer comprising a disc between mutually opposite respective screw stop surfaces of the top and of the valve
housing and which is deformed in a predetermined manner when screwing the top onto said lead-through opening;

the disc having at least one engaging nose protruding from one side of the disc;
said at least one engaging nose engaging in an engagement depression in the screw stop surface of the top or in the screw
stop surface of the valve housing, wherein the engagement depression is shaped complementary to the engagement nose and is
configured to rotationally lock the disc at a circumferentially position;

said disc having a plurality of angularly-spaced bulges extending from a side of the disc for engagement with the screw stop
surface of the top or the screw stop surface of the valve housing, wherein the plurality of angularly-spaced bulges project
from only a second side of the disc opposite the one side of the disc and in a direction which is opposite to a direction
that said at least one engaging nose projects from the one side of said disc; and

wherein the at least one bulge is plastically deformable and configured to plastically deform when the deformation buffer
is compressed when the valve housing and the top are assembled.

US Pat. No. 9,046,185

METHOD FOR DETERMINING AN OPERATING POSITION OF AN OPEN/CLOSED-VALVE AND FIELD DEVICE

SAMSON AKTIENGESELLSCHAFT...

1. A method for determining a position of an open/closed-valve positioned by a pneumatic actuating drive and movable to a
completely opened open position and a closed position depending on operating requirements, comprising the steps of:
during normal operation the actuating drive pneumatically influencing with an i/p converter a pneumatic working chamber of
the actuating drive such that the open/closed-valve moves to one of the open/closed positions and, in the case of a predefined
operating condition, the i/p-converter allowing the working chamber to vent so that the open/closed-valve automatically moves
to the other one of the open/closed positions;

capturing at least one of the pressures selected from a group consisting of a pressure prevailing in the working chamber and
a pneumatic control pressure output at the i/p converter continuously over time; and

determining a pressure change over time which defines a pressure versus time pattern, wherein said pressure versus time pattern
of the pressure change is compared to an expected pressure pattern based on saved empirical values of a faultlessly working
open/closed-valve, and in case of exceeding a predetermined deviation tolerance of the pressure versus time pattern with respect
to the expected pressure pattern an error signal is generated.

US Pat. No. 9,903,502

FLUID-OPERATED DRIVE

SAMSON AKTIENGESELLSCHAFT...

1. A fluid-operated drive for a field device of a processing plant, the drive being designed to set a control valve of the
field device, comprising:
a fluidically operated basic drive with a basic working chamber to be loaded fluidically and which is delimited by a basic
drive housing part and by a basic actuating piston guided in a fluid-tight manner in the basic drive housing part;

at least one supplementary drive with a supplementary working chamber to be loaded fluidically and delimited by a supplementary
drive housing part; and

a supplementary actuating rod fastened to the supplementary drive housing part and extending into an interior of the supplementary
drive housing part through a passage integrated in the basic drive housing part, the supplementary actuating rod being guided
in a fluid-tight movable manner in the passage,

wherein the supplementary actuating rod has a stop end situated in the basic working chamber and which is brought into loose
engagement with the basic actuating piston to transmit a supplementary actuating force of the supplementary drive in a driving
manner to the basic actuating piston, and

wherein the basic drive housing part and the supplementary drive housing part are displaceable in one another in accordance
with a piston and chamber arrangement so that a volume of the supplementary working chamber changes in the event of a relative
movement of the drive housing parts.

US Pat. No. 9,506,482

ELECTROPNEUMATIC CONTROL DEVICE AND ELECTROPNEUMATIC SUBASSEMBLY

SAMSON AKTIENGESELLSCHAFT...

1. An electropneumatic field device, comprising:
an electrical field input;
a pneumatic supply input;
at least one field output at which a field output signal is output based on a field control signal received via the electrical
field input;

a group comprising at least two modular components of different functionality and at least one modular slot configured to
be occupied with either of said modular components from said group, said at least two modular components of the group and
the at least one slot being modularly adapted to one another such that interfaces of the slot and interfaces of either of
said modular components in the slot merge into one another when the slot is occupied with either of said modular components
so that the modular component which is in the slot is connected to said electrical field input and to said at least one field
output; and

an identification apparatus that is configured to detect if a type of modular component inserted in said at least one modular
slot is a pneumatic component or an electrical output component, and if the modular component inserted in said at least one
modular slot is the electrical output component, an interface of the at least one modular slot connected to the pneumatic
supply input is blocked in an air tight manner.

US Pat. No. 9,500,293

PNEUMATIC DRIVE SYSTEM AND METHOD FOR OPERATING THE PNEUMATIC DRIVE SYSTEM

SAMSON AKTIENGESELLSCHAFT...

1. A pneumatic drive system for actuating a control valve, comprising:
a pneumatic working chamber and a current/pressure transducer coupled with the working chamber for loading the working chamber
with a pneumatic pressure to move the control valve; and

the current/pressure transducer having an electrical input configured to receive an electrical control signal, the current/pressure
transducer being configured to:

generate at least two pneumatic control signals with which the working chamber is loaded, the at least two pneumatic control
signals including a high flow rate control signal having a high flow rate and a low flow rate control signal having a low
flow rate;

supply the high flow rate control signal and the low flow rate control signal to the pneumatic working chamber simultaneously
to regulate a position of the control valve;

switch off the high flow rate control signal while maintaining the low flow rate control signal in the event that at least
one of a permitted vibration amplitude limit and vibration frequency limit is exceeded at the control valve.

US Pat. No. 10,001,419

SPRING BODY FOR A FORCE TRANSDUCER, SUCH AS A TORQUE-AND/OR TENSION/COMPRESSION-FORCE MEASURING CELL

SAMSON AKTIENGESELLSCHAFT...

1. A spring body for a force transducer built into a force-transmitting part, comprising:a force-input section for receiving a force, a force-output section for transmitting the force, and an elastic deformation body arranged therebetween which couples the force-output section to the force-input section so that the force received by the force-input section is transmitted to the force-output section by the elastic deformation body, said elastic deformation body performing a predetermined elastic deformation movement caused by the force to be transmitted at at least one point defined on an outside of the elastic deformation body; and
a coding sampling section provided at the at least one point of the deformation body and which follows all deformation movements of the at least one point, the coding sampling section being formed on the deformation body itself at the at least one point or being rigidly and immovable fastened on the deformation body at the at least one point using a separate component, wherein:
the elastic deformation body is formed by a first plurality of spring webs configured to couple and transmit the force from the force-input section to the coding sampling section and a second plurality of spring webs configured to couple and transmit the force from the force-output section to the coding sampling section, each of the spring webs of the first and second plurality of spring webs including an elongated rod and being dimensioned to be substantially of equal length and arranged at an acute pitch angle to an axial direction;
the elastic deformation body is structured so that the at least one point performs the deformation movement in a displacement direction which changes as a function of a type of force introduced into the force-input section, and
the at least one point is configured to perform:
a predominantly rotational movement in response to a translational tension or compression force; and
a predominantly translational movement in an axial direction in response to a torque to be detected.

US Pat. No. 9,341,062

ELECTROPNEUMATIC FIELD DEVICE

SAMSON AKTIENGESELLSCHAFT...

1. An electropneumatic field device for controlling a pneumatic actuator, comprising:
an energy transducer which converts pneumatic energy into electrical energy;
said energy transducer having a working chamber with a pneumatic compressed air inlet via which a compressed air impulse is
introduced into the working chamber, a reset chamber, a coil, an armature separating the working chamber and the reset chamber
and which is guided for a translational back and forth movement with corresponding enlargement or reduction in size of the
working chamber or the reset chamber, and said armature comprising a permanent magnet so that electric energy is induced in
the coil during the back and forth movement;

the pneumatic compressed air inlet being configured in such a manner that the compressed air impulse leaving the compressed
air inlet has an inflow direction angle into the working chamber which has an axial angular direction component which is parallel
to a translational axial movement direction of the armature; and

the compressed air inlet having a receptacle for a return body, the return body being guided in a movable manner, the receptacle
forming a sealing seat in which the return body sits in a manner sealing the compressed air inlet in a hermetically closing
manner when it is in a sealing position.

US Pat. No. 9,212,671

PNEUMATIC ACTUATOR AND METHOD FOR OPERATING THE PNEUMATIC ACTUATOR

SAMSON AKTIENGESELLSCHAFT...

1. A pneumatic actuator for setting a control armature, comprising:
a first working chamber and a second working chamber, the first and second working chambers being pneumatically separated
from each other by a movable dividing wall to which the control armature is coupled in a force-transmitting manner, said dividing
wall in case of a pressure difference between the working chambers being displaced in a first control direction;

a positioner adapted to output at least one pneumatic control signal to the first working chamber;
the first and the second working chambers being pneumatically connected to each other via a pneumatic short-circuit duct and
with a balancing valve disposed in the short-circuit duct for at least one of closing or opening the short-circuit duct, the
balancing valve being drivable by the positioner such that, in case of a certain operating condition detected by said positioner,
the balancing valve pneumatically short-circuits the first and the second working chambers for achieving a pressure balance
which equalizes pressure between the chambers; and

said certain operating condition comprises a stick-slip state of the control armature, the positioner being connected to sense
a slipping movement of the control armature after a sticking of the control armature, said short-circuiting by the balancing
valve occurring when the control armature slips.

US Pat. No. 9,528,901

DEVICE AND METHOD FOR QUANTIFYING A LEAKAGE FLOW ON AN ACTUATOR

SAMSON AKTIENGESELLSCHAFT...

1. A method for quantifying a wear-induced leakage flow on a closed process control valve that restricts a process stream,
comprising the steps of:
using said process control valve when it is intact and does not yet have a wear-induced leakage as a reference control valve
or another process control valve of a same design as said process control valve which does not have wear-induced leakage as
said reference control valve to determine several reference flow values in advance by placing the reference control valve
in several reference opening positions, and measuring the respective reference flow value for each of the reference opening
positions;

when determining each of the respective reference flow values, allocating a respective reference mechanical vibration acquired
in an environment of the reference control valve to each of the respective reference flow values;

determining an instantaneous mechanical vibration caused by said wear-induced leakage flow on said closed process control;
determining an instantaneous stream force prevailing on said process control valve;
identifying one of the respective reference mechanical vibrations coming closest to the determined instantaneous mechanical
vibration by way of an identity comparison or approximation comparison;

defining said identity comparison or approximation based on the determined instantaneous stream force; and
equating the wear-induced leakage flow to be quantified with the respective reference flow value allocated to the one identified
reference mechanical vibration.

US Pat. No. 10,048,092

TORSIONAL MOMENT AND ANGLE SENSOR AND ACTUATOR DRIVE

SAMSON AKTIENGESELLSCHAFT...

1. A torsional moment and angle sensor for determining a torsional moment to be transferred from a drive member to a driven member, comprising:an at least partially circumferential drive side encoder ring section;
a contactless scanning sensor configured to scan the drive side encoder ring section; and
a driven side encoder ring section via which an angular position of the driven member is scanned, the contactless scanning sensor being coupled to the drive side encoder ring section via a torsion spring bridge having a predetermined torsional elasticity, wherein at least one of:
a sensor carrier is attached at the drive side and spans an axial offset between the drive side encoder ring section and the driven side end of the torsion spring bridge; and
the sensor carrier is attached at the drive side and extends radially displaced with respect to a distortion portion at the torsion spring bridge, the distortion portion connecting the drive member with the driven member.

US Pat. No. 10,184,780

POSITION SENSOR AND ACTUATOR WITH POSITION SENSOR

SAMSON AKTIENGESELLSCHAFT...

14. A position sensor, comprising:a measuring shaft configured to pivot less than 360° around a pivot axis;
an angle sensor configured to detect an angular position of the measuring shaft relative to a reference point, wherein the angle sensor includes:
a rotationally fixed angle sub-sensor and being rotationally fixed relative to the measuring shaft, and
a stationary angle sub-sensor that is positioned stationary relative to the reference point; and
a position detector configured to detect whether the angular position of the measuring shaft corresponds to a predetermined angular position, the position detector including:
a rotationally fixed position sub-detector rotationally fixed relative to the measuring shaft, and
a stationary position sub-detector arranged stationary relative to the reference point.

US Pat. No. 9,880,564

POSITION CONTROLLER FOR A PNEUMATIC FIELD DEVICE

SAMSON AKTIENGESELLSCHAFT...

1. A position controller for a pneumatic field device of a process plant, comprising:
a current-pressure transducer system having at least two I/P-transducers creating at least two separate pneumatic control
signals;

microelectronics creating at least two electrical control signals for the at least two I/P-transducers;
a pneumatic signal switch valve having at least two pneumatic inputs for the at least two pneumatic control signals, a pneumatic
output for transferring a pneumatic control signal to a working chamber of the pneumatic field device, and an electrical switch
signal input; and

the pneumatic signal switch valve comprising a first switch position in which it blocks a first of the at least two pneumatic
control signals and a second switch position in which it blocks a second of the at least two pneumatic control signals.

US Pat. No. 10,234,051

ELECTROPNEUMATIC MAGNET VALVE

SAMSON AKTIENGESELLSCHAFT...

1. An electropneumatic magnet valve for a pneumatically actuated field device, comprising:a valve member configured to be moveable between at least two operating positions for ventilating and/or exhausting a magnet valve exit;
an electromagnetic controller configured to move the valve member between the at least two operating positions; and
a magnet valve member operator configured to move, additionally with respect to the electromagnetic controller, the valve member independently of an operation of the electromagnetic controller, the valve member operator including:
an activator configured to selectively provide a magnetic field for contact free operation of the valve member via which the magnet valve member operator is changeable between a passive operating condition and an active operating condition, wherein, in the passive operating condition, the valve member remains unmoved due to the magnet valve member operator, and in the active operating condition, the valve member is moved out of one of the operating positions under the influence of the magnetic field, and
wherein the electropneumatic magnet valve further comprises:
a safety device having an electronic warning signal emitter, the electronic warning signal emitter being configured to turn off the activator while the electromagnetic controller is operated;
a position sensor configured to detect the position of the magnetic field and/or of a magnetic field shielding relative to the active operating position thereof; and/or
a magnetic field sensor in the area of the electromagnetic controller and/or of the valve member configured to detect the presence or absence of the magnetic field of the valve member operator.

US Pat. No. 10,215,306

VALVE CAGE FOR RECEIVING A VALVE MEMBER AND METHOD FOR OPERATING A CONTROL VALVE WITH A VALVE CAGE AND A VALVE MEMBER

SAMSON AKTIENGESELLSCHAFT...

1. A sleeve shaped valve cage for receiving a valve member, the valve cage being adapted to guide the valve member relative to the valve cage in a displacement direction between a closed position in which the valve member prevents a stream of processing fluid through the control valve and an open position in which the valve cage together with the valve member releases an opening area for a stream of processing fluid and further adapted to provide different reducing characteristics based on the control position of the valve member, the valve cage comprising:a throttle section configured to provide pressure-reduced flow rates of the processing fluid, the throttle section having multiple throttle conduits extending from an inside of the valve cage to an outside of the valve cage, wherein the throttle conduits are exclusively comprised within the throttle section;
a high capacity flow section adjacent to the throttle section in the displacement direction, the high capacity flow section configured to provide increased flow rates of the processing fluid; and
at least one equalization channel formed in the valve cage and extending from the inside to the outside of the valve cage, the at least one equalization channel leading from the high capacity flow section to the throttle section such that, before the valve member releases all throttle conduits, the equalization channel is released, wherein the at least one equalization channel extends between at least two adjacent throttle conduits of the multiple throttle conduits as the at least one equalization channel leads from the high capacity flow section to the throttle section.

US Pat. No. 10,197,076

PNEUMATIC VOLUME BOOSTER

SAMSON AKTIENGESELLSCHAFT...

1. Pneumatic volume booster for amplifying a pneumatic control pressure output signal of a position controller which aerates and/or de-aerates a pneumatic actuator, for actuating a control armature of a processing plant, the booster comprising:a pneumatic control outlet for attachment to a first pneumatic working chamber of the pneumatic actuator;
a pneumatic aeration inlet configured to receive the pneumatic control pressure signal from the position controller,
at least one pneumatic amplification inlet configured to receive a constant pneumatic air amplification signal,
a pneumatic de-aeration connection from the control outlet to a pressure sink configured to aerate the control actuator,
a deaerator seat-valve separating and/or opening the pneumatic de-aeration connection,
a pneumatic aeration connection between the pneumatic aeration inlet and the control outlet;
an aerator seat-valve separating and/or opening the pneumatic aeration connection,
a pneumatic amplification connection between the pneumatic amplification inlet and the control outlet;
an amplification seat-valve separating and/or opening the pneumatic amplification connection; and
a mechanical seat-valve-operator for commonly operating the de-aeration seat-valve, the first aerator seat-valve and the amplification seat-valve.

US Pat. No. 10,274,103

ELECTRO-PNEUMATIC ACTUATOR

SAMSON AKTIENGESELLSCHAFT...

1. An electro-pneumatic actuator of a field device of a processing plant, comprising:a pneumatically operated display configured to visually display or acoustically present at least one field device-specific operating information; and
an electro-pneumatic display signal transducer configured to output and deliver at least one pneumatic display actuating signal to the pneumatically operated display based on the field device-specific operating information,
wherein the electro-pneumatic actuator is configured to output at least one pneumatic drive actuating signal to a pneumatic drive to set a final controlling device of the field device.