ClassID:

146103

F15B15/204 - CPC Classification

Classification description:

Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith; Other details, e.g. assembly with regulating devices Control means for piston speed or actuating force without external control, e.g. control valve inside the piston

Recent Application in this class:
#1
20260152140
2026-06-04

Restraint Systems and Restraint System Methods

#2
20260079063
2026-03-19

SYSTEMS AND METHODS FOR CONTROL AND MONITORING OF ACTUATED VALVES

#3
20260043424
2026-02-12

DILATANT FLUID BASED OBJECT MOVEMENT CONTROL MECHANISM

#4
20250389286
2025-12-25

READILY-OPERABLE HYDRAULIC CYLINDER

#5
20250347300
2025-11-13

PRESSURE APPLYING DEVICE

#6
20250137474
2025-05-01

APPARATUS AND METHOD FOR RECIRCULATING HYDRAULIC FLUID

#7
20250043542
2025-02-06

Construction Machine

#8
20240410439
2024-12-12

METHOD OF CONTROLLING PRESSURE VARIATION IN WORKING FLUIDS IN A FLUID CIRCUIT UNDERGOING WORKING PRESSURE VARIATIONS

#9
20240318673
2024-09-26

DILATANT FLUID BASED OBJECT MOVEMENT CONTROL MECHANISM

#10
20240125666
2024-04-18

SYSTEMS AND METHODS FOR CONTROL AND MONITORING OF ACTUATED VALVES

#11
20240124166
2024-04-18

Shockless spacecraft dispenser

#12
20240117825
2024-04-11

Assembly for a fluid-filled piston-cylinder unit and fluid-filled piston-cylinder unit having an assembly of this type

#13
20230417263
2023-12-28

HYDRAULIC SYSTEM FOR A VEHICLE OR A CONTAINER, AND VEHICLE OR CONTAINER HAVING SUCH A HYDRAULIC SYSTEM

#14
20230228284
2023-07-20

CYLINDER ON DEMAND HYDRAULIC DEVICE

#15
20230204086
2023-06-29

Method of controlling pressure variation in working fluids in a fluid circuit undergoing working pressure variations

#16
20230184270
2023-06-15

ARRANGEMENT AND METHOD FOR CONTROLLING AT LEAST ONE OPERATION OF A WORK MACHINE AND WORK MACHINE

#17
20230107542
2023-04-06

Multi-shear thickening fluid enabled object movement control mechanism

#18
20230103233
2023-03-30

DILATANT FLUID BASED OBJECT MOVEMENT CONTROL MECHANISM

#19
20230099456
2023-03-30

Dilatant fluid based object movement control mechanism

#20
20220412380
2022-12-29

Impact-resistant balanced hydro-cylinder with pressure relief and buffering protection

#21
20220364579
2022-11-17

Gas cylinder

#22
20220349426
2022-11-03

Air cylinder, head cover, and rod cover

#23
20220333622
2022-10-20

Air cylinder, head cover, and rod cover

#24
20220316501
2022-10-06

Flow rate controller and drive device equipped with same

#25
20220307526
2022-09-29

HYBRID VEHICLE CONTROL METHOD

#26
20220299048
2022-09-22

CYLINDER WITH AUTOMATIC HYDRAULIC FLUID CIRCULATION

#27
20220154741
2022-05-19

Work machine

#28
20220074435
2022-03-10

CLOSED CYCLE INVENTORY CONTROL

#29
20220065272
2022-03-03

Hydraulic variable pump set and excavator

#30
20220049727
2022-02-17

Working machine

#31
20220049725
2022-02-17

FLUID PRESSURE CYLINDER

#32
20220049723
2022-02-17

Working machine

#33
20220025912
2022-01-27

Lift arm lifting and lowering mechanism

#34
20210388855
2021-12-16

Gas cylinder

#35
20210381199
2021-12-09

Hydraulic cylinder, for example for use with a hydraulic tool

#36
20210360879
2021-11-25

HYDRAULIC ACTUATOR, WORKING DEVICE, AND ENERGY-WOOD GRAPPLE

#37
20210348366
2021-11-11

Hydraulic excavator

#38
20210302259
2021-09-30

Systems and methods for control and monitoring of actuated valves

#39
20210270295
2021-09-02

Restraint Systems and Restraint System Methods

#40
20210231134
2021-07-29

Hydraulic oscillation mitigation system for working machine

#41
20210199171
2021-07-01

Method of controlling pressure variation in working fluids in a fluid circuit undergoing working pressure variations

#42
20210131456
2021-05-06

Oil returning valve set with multi-stage throttling control

#43
20210123464
2021-04-29

Cylinder on demand hydraulic device

#44
20210114542
2021-04-22

Passenger restraint device and fairground ride passenger unit

#45
20210102561
2021-04-08

Abnormality detecting system and abnormality detecting method

#46
20210095701
2021-04-01

Dithering hydraulic valves to mitigate static friction

#47
20210079624
2021-03-18

Locking system for a work machine

#48
20210069892
2021-03-11

Tunable actuator joint modules having energy recovering quasi-passive elastic actuators with internal valve arrangements

#49
20210069891
2021-03-11

Tunable actuator joint modules having energy recovering quasi- passive elastic actuators with internal valve arrangements

#50
20210010493
2021-01-14

Hydrokinetic torque-coupling device having lock up clutch with dual piston assembly

#51
20200391846
2020-12-17

Spoiler droop function with mechanical feedback driving hydraulic valve

#52
20200378412
2020-12-03

Double-acting overflow valve of a working cylinder and master cylinder

#53
20200255125
2020-08-13

Actuator control valve arrangement

#54
20200231205
2020-07-23

Power steering gear assembly having an end of travel valve assembly

#55
20200224783
2020-07-16

Sequence valve-mounted cylinder device

#56
20200132092
2020-04-30

Displacement control device

#57
20200124063
2020-04-23

Shut-off valve control device, shut-off valve control system, method for calculating shut-off valve control coefficient, and method for controlling shut-off valve

#58
20200056636
2020-02-20

Hydraulic servo valve

#59
20200033894
2020-01-30

Valve control device, valve control system, valve control coefficient calculation method, and valve control method

#60
20190383312
2019-12-19

Pressure regulator valve

#61
20190368519
2019-12-05

HYDRAULIC ACTUATOR

#62
20190271338
2019-09-05

Hydraulic actuator with cartridge pressure amplifier

#63
20190271337
2019-09-05

Pneumatic or hydraulic mechanism

#64
20190271332
2019-09-05

Hydraulic actuator with pressure amplifier

#65
20190264715
2019-08-29

Line rupture safeguard for a hydraulic cylinder

#66
20190226937
2019-07-25

Systems and methods for control and monitoring of actuated valves

#67
20190224794
2019-07-25

In-port sequence valve

#68
20190186508
2019-06-20

Cylinder occupying structure

#69
20190128436
2019-05-02

Bi-directional inline check valve

#70
20190120258
2019-04-25

Hydraulic pressure amplifier arrangement

#71
20180319000
2018-11-08

Hydraulically actuated piston guided in a cylinder, and hydraulic working tool

#72
20180274600
2018-09-27

Automatic transmission

#73
20180245657
2018-08-30

Fluid circuit device

#74
20180238356
2018-08-23

Electro-hydraulic actuator

#75
20180194000
2018-07-12

Tunable actuator joint modules having energy recovering quasi-passive elastic actuators with internal valve arrangements

#76
20180163752
2018-06-14

Integrated implement downforce control systems, methods, and apparatus

#77
20180156249
2018-06-07

Cylinder device

#78
20180118255
2018-05-03

Power steering gear assembly having an end of travel valve assembly

#79
20180094653
2018-04-05

Position dependent valve device for control cylinder

#80
20180093440
2018-04-05

Hydraulic drive

#81
20180093403
2018-04-05

Actuator apparatus and method enabling multiple piston velocities

#82
20170356474
2017-12-14

Integrated implement downforce control systems, methods, and apparatus

#83
20170314583
2017-11-02

Actuator rate control with energy absorbing pressure relief system

#84
20170204885
2017-07-20

Pneumatic volume booster

#85
20170151701
2017-06-01

Actuator apparatus and method enabling multiple piston velocities

#86
20170122346
2017-05-04

Hydraulic unit for a mobile hydraulic tool

#87
20170120493
2017-05-04

Actuator apparatus and method enabling multiple piston velocities

#88
20170036897
2017-02-09

Oil return mechanism

#89
20160341225
2016-11-24

Mistake proof ram air turbine downlock protection

#90
20160305568
2016-10-20

Valve having electro-mechanical actuator and a control device with a delay circuit

#91
20160252109
2016-09-01

Hydraulic displacement control system

#92
20160208829
2016-07-21

Fluid flow regulator

#93
20160169381
2016-06-16

Hydraulic actuating device for a positive-locking shifing element of a transmission

#94
20160138623
2016-05-19

Method for controlling a lifting jack for an aircraft engine nacelle, a jack-type lifting system implementing the method and the thus equipped nacelle

#95
20160096617
2016-04-07

Hydraulic actuator

#96
20160040692
2016-02-11

Integrated implement downforce control systems, methods, and apparatus

#97
20160010667
2016-01-14

Hydraulic tools with rapid advance

#98
20150308423
2015-10-29

Cylinder apparatus

#99
20150247512
2015-09-03

Cylinder device with force multiplication mechanism

#100
20150226238
2015-08-13

Surge brake actuator

#101
20150184683
2015-07-02

Actuator

#102
20150184681
2015-07-02

Actuator

#103
20150176614
2015-06-25

Integrated implement downforce control systems, methods, and apparatus

#104
20150159799
2015-06-11

Pipe joint

#105
20150152895
2015-06-04

Cylinder phaser valves

#106
20150145249
2015-05-28

Pipe joint

#107
20150060707
2015-03-05

Electro-hydraulic actuator

#108
20150000516
2015-01-01

Cylinder device with force multiplier

#109
20140360356
2014-12-11

Vented pressurized gas-powered actuator

#110
20140305111
2014-10-16

Reciprocal hydraulic cylinder and power generation system

#111
20140191456
2014-07-10

Actuator and clamp device using same

#112
20140109759
2014-04-24

Cylinder device with force multiplier

#113
20130343939
2013-12-26

Two-step hydraulic valve

#114
20130277178
2013-10-24

Device for tensioning a tension mechanism of a conveying device

#115
20130213028
2013-08-22

Oil hydraulic system for moving a gate

#116
20130001031
2013-01-03

Pneumatic cylinder having a self-adjusting end position damping

#117
20120304633
2012-12-06

INTENSIFIER OF HYDRAULIC POWER WITH RELY WITH MAINTENANCE OF THE REACHED POSITION AND FORCE

#118
20120267132
2012-10-25

Agricultural implement with accumulator suspension

#119
20120223120
2012-09-06

Valve cap for pneumatic nailer

#120
20120220177
2012-08-30

Trim/tilt apparatus for marine vessel propulsion machine

#121
20110314809
2011-12-29

Activated-stroke actuator, in particular for an automobile safety system for the protection of pedestrians

#122
20110271667
2011-11-10

Hydraulic drive device having two pressure chambers and method for operating a hydraulic drive device having two pressure chambers

#123
20110266834
2011-11-03

Vehicle with tilt cab

#124
20110239855
2011-10-06

Single effect hydraulic cylinder

#125
20110162719
2011-07-07

Suspension of a measurement wheel using a shock-absorbing double-action hydraulic cylinder

#126
20110079142
2011-04-07

Cylinder phaser valves

#127
20110036415
2011-02-17

Internal relief valve for a valve actuator

#128
20100326267
2010-12-30

Hydraulic cylinder

#129
20100236881
2010-09-23

Variable resistance strut assemblies and articles containing the same

#130
20100206160
2010-08-19

Fluid control system for use with a patient support apparatus

#131
20100116125
2010-05-13

Auxiliary force steering device for a vehicle

#132
20100058753
2010-03-11

Valve assembly for an actuating device

#133
20100054909
2010-03-04

Variable turbo supercharger and method of driving the same

#134
20100024415
2010-02-04

Variable turbo supercharger and method of driving the same

#135
20090241714
2009-10-01

Hydraulic actuator for transmissions having reduced noise

#136
20090206648
2009-08-20

Hydraulic system

#137
20090151553
2009-06-18

Air spring pneumatic product rejection system

#138
20090095839
2009-04-16

Retraction cylinder and rotorcraft undercarriage furnished with such a retraction cylinder

#139
20090077957
2009-03-26

Hydraulic drive system and method of operating a hydraulic drive system

#140
20090056326
2009-03-05

Operating device

#141
20090008844
2009-01-08

Variable Resistance Strut Assemblies and Articles Containing the Same

#142
20090000468
2009-01-01

Procedure for the loading of a working cylinder, control module for it, working cylinder and utilization of the same

#143
20080289327
2008-11-27

Linear Drive

#144
20080253906
2008-10-16

Magnetically sequenced pneumatic motor

#145
20080250919
2008-10-16

Valve with magnetic detents

#146
20080250918
2008-10-16

Pneumatically self-regulating valve

#147
20080202329
2008-08-28

Piston for a piston-cylinder unit

#148
20080141736
2008-06-19

DEVICES FOR HOLDING INTERMEDIATE POSITIONS AND ARTICLES THAT CONTAIN THE SAME

#149
20080127816
2008-06-05

Energy dissipation valves for hydraulic cylinders

#150
20080079221
2008-04-03

Fluid operated device with improved seal valve

#151
20080054617
2008-03-06

Vehicle Having At Least One Seat For At Least One Vehicle Occupant And A Belt System

#152
20080028925
2008-02-07

Piston-cylinder unit

#153
20080006114
2008-01-10

Hydraulic actuating device for actuating a shift rod in particular of a gearbox for motor vehicles

#154
20070289437
2007-12-20

Adjustable hydraulic support cylinder

#155
20070278749
2007-12-06

U-PACKING AND FLUID PRESSURE SINGLE ACTING CYLINDER

#156
20070221054
2007-09-27

Fluid actuator with limit sensors and fluid limit valves

#157
20070144819
2007-06-28

Passively rephasing piston

#158
20070101861
2007-05-10

Two-speed cylinder

#159
20060213191
2006-09-28

Pyrotechnic actuator furnished with a pressure regulator member

#160
20060151653
2006-07-13

Hydraulic spooler

#161
20060137336
2006-06-29

Hydraulic drive for displacing an actuator

#162
20060131803
2006-06-22

Spring-lock type clamp device

#163
20060090464
2006-05-04

Powered variable volume gas lift assembly and a method of operating the same

#164
20060083641
2006-04-20

Energy dissipation valves for hydraulic cylinders

#165
20060083640
2006-04-20

Energy dissipation valves for hydraulic cylinders

#166
20050263359
2005-12-01

Customizable strut assemblies having variable stroke lengths and articles employing the same

#167
20050230195
2005-10-20

Devices for holding intermediate positions and articles that contain the same

#168
20050229774
2005-10-20

Piston for a hydraulic brake system and master cylinder equipped therewith

#169
20050211087
2005-09-29

Hydraulic actuator having disc valve assembly

#170
20050206175
2005-09-22

Active materials based approaches to latch snug down and articles containing the same

#171
20050205364
2005-09-22

Variable resistance strut assemblies and articles containing the same

#172
20050199455
2005-09-15

Customizable strut assemblies and articles that employ the same

#173
20050188834
2005-09-01

Hydraulic cylinder

#174
17515007
2023-02-28

Dilatant fluid based object movement control mechanism

#175
16998771
2022-02-15

Four stroke relative motion cylinder with dedicated compression space

#176
14254864
2018-01-09

Hydro-mechanical device with preloaded flow regulating assembly

#177
14219666
2017-11-14

Motion control