ClassID:

152455

F16K31/122 - CPC Classification

Classification description:

Operating means Actuating devices; ; Releasing devices actuated by fluid the fluid acting on a piston

Sub-classes:
Recent Application in this class:
#1
20260092650
2026-04-02

COMPLIANT PISTON PNEUMATIC VALVE ACTUATOR

#2
20260029066
2026-01-29

SHUTOFF VALVE

#3
20250341264
2025-11-06

ACTUATOR

#4
20250305385
2025-10-02

ROTARY ACTUATED SHEAR AND SEAL VALVE

#5
20250271077
2025-08-28

METHOD OF PNEUMATICALLY OPERATING A VALVE USING GAS WITHOUT EMITTING GREENHOUSE EMISSIONS

#6
20250243738
2025-07-31

Systems and Methods for Data Acquisition from Valve Assemblies

#7
20250237319
2025-07-24

ADJUSTABLE CONSTANT PRESSURE DEVICE

#8
20250180135
2025-06-05

HIGH-PRESSURE FLUID ON/OFF VALVE AND COMPONENTS AND METHOD OF USE OF SAME

#9
20250129863
2025-04-24

VALVE DEVICE

#10
20250102074
2025-03-27

PROPORTIONAL FLUID FLOW VALVE AND METHODS OF OPERATING THEREOF

#11
20250060039
2025-02-20

RESETTABLE PYROTECHNICALLY-ACTUATED POPPET VALVE

#12
20250035233
2025-01-30

INSTANT ON-OFF VALVES FOR HIGH PRESSURE FLUIDS

#13
20250035225
2025-01-30

TIMING ADJUSTMENT VALVE AND SUCKBACK VALVE PROVIDED WITH SAME

#14
20250018144
2025-01-16

VALVE WITH INTERNAL MEMBER

#15
20240418290
2024-12-19

ACTUATOR AND VALVE DEVICE

#16
20240401704
2024-12-05

FLOW CONTROL ARRANGMENT AND METHOD OF CLEANING SUCH AN ARRANGEMENT

#17
20240384812
2024-11-21

Interchangeable Linear Power Module

#18
20240353023
2024-10-24

Hydraulic trigger for isolation valves

#19
20240337322
2024-10-10

STOP VALVE

#20
20240328536
2024-10-03

Emergency isolation valve control design

#21
20240301965
2024-09-12

EMERGENCY RELEASE MECHANISM OF FLUID LOADING EQUIPMENT

#22
20240295160
2024-09-05

Compensator piston for a shunt closure

#23
20240254901
2024-08-01

HYDRAULIC VALVE WITH LINEAR ADJUSTABLE THROTTLING GATE AND A HYDRAULIC VELOCITY FUSE THROTTLING GATE

#24
20240209957
2024-06-27

VALVE ARRANGEMENT, ACTUATOR ARRANGMENT AND METHODS OF DETECTING A FIRST POSITION THEREIN

#25
20240191811
2024-06-13

A VALVE AND A METHOD OF CONTROLLING FLUID FLOW BETWEEN A FLUID SUPPLYING DEVICE AND A FLUID RECEIVING DEVICE

#26
20240175516
2024-05-30

MINIATURIZED HYDRAULIC VALVE, AND APPLICATIONS THEREOF IN ROBOT SYSTEMS

#27
20240125407
2024-04-18

ACTUATOR

#28
20240093801
2024-03-21

Reversible electromagnetic valve and air conditioning unit having same

#29
20240093788
2024-03-21

REVERSIBLE ELECTROMAGNETIC VALVE

#30
20240084900
2024-03-14

REVERSIBLE ELECTROMAGNETIC VALVE, AND AIR CONDITIONING UNIT HAVING SAME

#31
20240019037
2024-01-18

Hydraulic valve

#32
20230417332
2023-12-28

Bioprocess flow system

#33
20230407989
2023-12-21

Actuator Position Sensing System

#34
20230383770
2023-11-30

SAFETY VALVE ARRANGEMENT AND ACTUATOR SYSTEM

#35
20230373141
2023-11-23

System for operating a fluid actuator

#36
20230349468
2023-11-02

Valve device

#37
20230265939
2023-08-24

Switching means of working fluid

#38
20230243437
2023-08-03

Actuator assemblies and related methods for valve systems

#39
20230219119
2023-07-13

VALVE AND METHOD FOR CLEANING A VALVE

#40
20230160289
2023-05-25

High and low pressure manifold liquid supply system for fracturing units

#41
20230051454
2023-02-16

Surface cleaning device

#42
20230041944
2023-02-09

Hydraulic trigger for isolation valves

#43
20220401989
2022-12-22

Apparatus for applying viscous material

#44
20220390020
2022-12-08

Vacuum valve

#45
20220362507
2022-11-17

Valve with internal member

#46
20220299122
2022-09-22

ADDITIVE MANUFACTURING AND GENERATIVE DESIGN HYDRAULIC SHUTTLE VALVE

#47
20220290764
2022-09-15

Valve device, fluid control device, and manufacturing method of valve device

#48
20220275879
2022-09-01

Valve module, valve device, valve system

#49
20220260162
2022-08-18

Valve assembly for well systems

#50
20220228468
2022-07-21

High and low pressure manifold liquid supply system for fracturing units

#51
20220196163
2022-06-23

Valve device, flow rate control method, fluid control device, semiconductor manufacturing method, and semiconductor manufacturing apparatus using the valve device

#52
20220194015
2022-06-23

Manufacturing method for fluid control apparatus

#53
20220170342
2022-06-02

VALVE ARRANGEMENT

#54
20220143885
2022-05-12

Method and system for operating a fluid actuator

#55
20220142145
2022-05-12

AN ACTUATION VALVE AND PEST CONTROL DEVICE

#56
20220090612
2022-03-24

Pneumatic actuator end cap having an integral volume booster

#57
20210404486
2021-12-30

Flow rate controller and drive device comprising same

#58
20210341074
2021-11-04

Pressure actuator with biasing element

#59
20210324959
2021-10-21

Pressure actuated valve with shock absorber

#60
20210278012
2021-09-09

FLUID DRIVE VALVE

#61
20210262583
2021-08-26

Valve device

#62
20210262580
2021-08-26

PILOT OPERATED FLOW CONTROL VALVES

#63
20210211068
2021-07-08

Micro electrostatic actuated pneumatic driven motor

#64
20210207717
2021-07-08

Control valve for fluid treatment apparatus

#65
20210164584
2021-06-03

Bistable anti-stall valve system

#66
20210140510
2021-05-13

ENERGY DAMPING LINEAR ACTUATOR

#67
20210116047
2021-04-22

Fluid control device

#68
20210080023
2021-03-18

Electro-hydraulic actuator and valve arrangement comprising electro-hydraulic actuator

#69
20210069456
2021-03-11

Valve with internal member

#70
20210062923
2021-03-04

Methods and systems for dual force valve actuation

#71
20210062921
2021-03-04

Gate valve device

#72
20210048109
2021-02-18

GATE VALVE

#73
20210018113
2021-01-21

Valve piston and valve comprising the valve piston

#74
20210003125
2021-01-07

Unloader for a compressor and servicing thereof and compressor provided with an unloader

#75
20200400046
2020-12-24

Hydraulic valve with linear adjustable throttling gate and a hydraulic velocity fuse throttling gate

#76
20200393051
2020-12-17

Valve device

#77
20200362990
2020-11-19

Valve trim apparatus having multiple fluid flow control members

#78
20200362885
2020-11-19

Pilot close vent valve

#79
20200340322
2020-10-29

Frac manifold and connector

#80
20200291967
2020-09-17

Rotary actuator

#81
20200290553
2020-09-17

Systems and methods for inflator-based actuation

#82
20200278234
2020-09-03

Valve device, adjustment information generating method, flow rate adjusting method, fluid control system, flow rate control method, semiconductor manufacturing system and semiconductor manufacturing method

#83
20200278032
2020-09-03

Dual Seat Valve

#84
20200248830
2020-08-06

Hydraulic spool valve

#85
20200232566
2020-07-23

Pressure relief valve apparatus, system and method

#86
20200224776
2020-07-16

Valve device, flow control method using the same, and semiconductor manufacturing method

#87
20200194199
2020-06-18

Intake Device of Pneumatic Hammer

#88
20200189085
2020-06-18

Valve of Pneumatic Hammer

#89
20200182369
2020-06-11

Actuator

#90
20200166154
2020-05-28

Vacuum valve having a pressure sensor

#91
20200141428
2020-05-07

Actuator, valve device, and fluid supply system

#92
20200132209
2020-04-30

Space-constrained hybrid linear actuator

#93
20200124192
2020-04-23

Aspirator pressure relief valve with relief control unit

#94
20200096133
2020-03-26

Valve, in particular vacuum valve

#95
20200084956
2020-03-19

Purging system for multiple variety seed meter

#96
20200049266
2020-02-13

Pilot operated blow-off valves for hydraulic actuators

#97
20200041007
2020-02-06

Actuator and valve device using the same

#98
20200031177
2020-01-30

System for inflating—deflating a tyre

#99
20200018402
2020-01-16

Automatic back-pressure valve for use in supercritical fluid chromatographic system

#100
20200018331
2020-01-16

Controller

#101
20200010109
2020-01-09

Hydraulic bi-directional flow switches

#102
20200003332
2020-01-02

Method of controlling a three-position slide valve

#103
20190390777
2019-12-26

Control valve for fluid treatment apparatus

#104
20190383313
2019-12-19

Linear actuator with rotary positional output

#105
20190353273
2019-11-21

Double action direction fluid flow valve

#106
20190331253
2019-10-31

Thermal volume control for an actuator assembly

#107
20190331239
2019-10-31

Switchable bidirectional core-actuated valve

#108
20190331019
2019-10-31

WATER COOLING DEVICE CAPABLE OF SWITCHING PUMP LOOP

#109
20190309647
2019-10-10

Pneumatic controller for controlling a bleed valve

#110
20190278309
2019-09-12

Pressure relief valve apparatus, system and method

#111
20190264822
2019-08-29

Valve assembly for well systems

#112
20190264820
2019-08-29

Vacuum-based energy-saving large-capacity precision pressure regulation valve

#113
20190264535
2019-08-29

Apparatus and a method for controlling fluid flow in, into or out of a well, and an orientation means for orienting the apparatus

#114
20190257440
2019-08-22

Flow control device with flow adjustment mechanism

#115
20190257432
2019-08-22

Fluid control valve and fluid control valve manufacturing method

#116
20190203743
2019-07-04

HYDRAULIC NO-BACK DEVICE

#117
20190186644
2019-06-20

Energetic one way sequence termination valve

#118
20190178394
2019-06-13

Fluid control valve and fluid control valve assembling method

#119
20190168039
2019-06-06

AIR-PRESSURE CONTROLLED PISTON AND VALVE CONFIGURATION

#120
20190154157
2019-05-23

Poppet valve system and process

#121
20190143072
2019-05-16

Valve with internal member

#122
20190136984
2019-05-09

Device for controlling fluid flow

#123
20190128431
2019-05-02

Valve apparatus and controlling method therefor

#124
20190120378
2019-04-25

Transmission park control system

#125
20190107220
2019-04-11

Valve drive system for a pneumatic or hydraulic valve

#126
20190101943
2019-04-04

Relay valve and force balancing method

#127
20190077648
2019-03-14

Side shutoff piston valve assembly

#128
20190072988
2019-03-07

Pressure reducing valve

#129
20190072452
2019-03-07

VALVE MANIFOLD

#130
20190063635
2019-02-28

Actuator

#131
20190063466
2019-02-28

Fluid control valve

#132
20190056041
2019-02-21

Diaphragm valve with total valve cavity evacuation

#133
20190053419
2019-02-21

Purging system for multiple variety seed meter

#134
20190032814
2019-01-31

Detecting and signaling system

#135
20190032791
2019-01-31

Dual seat valve

#136
20190024807
2019-01-24

Slide sleeve valve having integral leak prevention

#137
20190023245
2019-01-24

Pre-filling device for a braking system comprising a hydro-booster device and operating method thereof

#138
20190010769
2019-01-10

Control system for actuating drill pipe rack

#139
20180355996
2018-12-13

Double action direction fluid flow valve

#140
20180355892
2018-12-13

Fluid control valve

#141
20180320798
2018-11-08

Reflexive valve preservation and actuation system and method

#142
20180320682
2018-11-08

Relief valve assembly and components thereof

#143
20180286193
2018-10-04

Non-electrical power operated sensor and monitoring system using the same

#144
20180240685
2018-08-23

Substrate processing apparatus

#145
20180238767
2018-08-23

Arrangement and method for testing the tightness of a container

#146
20180231133
2018-08-16

Vacuum valve

#147
20180224007
2018-08-09

Energetic one way sequence termination valve

#148
20180216485
2018-08-02

Steam turbine valve drive apparatus

#149
20180185861
2018-07-05

Needle valve

#150
20180163892
2018-06-14

Pneumatic valve

#151
20180156339
2018-06-07

Blade for vacuum valve

#152
20180129338
2018-05-10

Valve positioner and user interface for valve positioner

#153
20180112783
2018-04-26

Compressor surge protection

#154
20180106393
2018-04-19

Self-operated regulator

#155
20180074529
2018-03-15

PRESSURE-REDUCING VALVE

#156
20180072117
2018-03-15

Rapid opening gas valve

#157
20180066765
2018-03-08

Control valve

#158
20180052475
2018-02-22

Poppet valve

#159
20180051825
2018-02-22

Vacuum valve

#160
20180045327
2018-02-15

Thermal volume control for an actuator assembly

#161
20180038504
2018-02-08

Pneumatic mixing valve

#162
20180037251
2018-02-08

Hydraulic bi-directional flow switches

#163
20180031139
2018-02-01

Actuator

#164
20180029062
2018-02-01

Fluid valve, in particular a return valve for a painting system

#165
20170356567
2017-12-14

Combination air valve

#166
20170356277
2017-12-14

Bellows valve and an injection valve

#167
20170343121
2017-11-30

Water control valve

#168
20170343020
2017-11-30

Intermittent air discharge apparatus

#169
20170328270
2017-11-16

Valve device for vehicle

#170
20170300072
2017-10-19

Agricultural system

#171
20170292543
2017-10-12

Linear Displacement Sensor for Telescoping Cylinders and Actuators

#172
20170285668
2017-10-05

PRESSURE RELIEF VALVE APPARATUS AND AN ELECTRONIC SYSTEM FOR CONTROLLING THE SAME

#173
20170268692
2017-09-21

Apparatus for actuating a valve

#174
20170266979
2017-09-21

Valve driving device, functional liquid supply unit, and liquid droplet discharging apparatus

#175
20170248250
2017-08-31

Regulating device

#176
20170234454
2017-08-17

Local position indicator for subsea isolation valve having no external position indication

#177
20170234451
2017-08-17

Backflow prevention valve

#178
20170234439
2017-08-17

Fluid controller

#179
20170234438
2017-08-17

Fluid controller

#180
20170184206
2017-06-29

Fluid controller with diaphragm

#181
20170175921
2017-06-22

Double action direction fluid flow valve

#182
20170159846
2017-06-08

Valve drive with position sensor

#183
20170152952
2017-06-01

Snorkel valve

#184
20170146037
2017-05-25

Pneumatic Actuator

#185
20170138488
2017-05-18

Six-way directional valve

#186
20170114921
2017-04-27

Plastic injection mold—SVG actuator—internal seal upgrade

#187
20170114903
2017-04-27

Control valve for fluid treatment apparatus

#188
20170102166
2017-04-13

System and method to reduce standby energy loss in a gas burning appliance and components for use therewith

#189
20170097103
2017-04-06

Pneumatic valve

#190
20170097100
2017-04-06

Latching poppet valve

#191
20170082211
2017-03-23

Valve assembly

#192
20170067573
2017-03-09

Hybrid manual and hydraulic override

#193
20170066403
2017-03-09

Device for controlling a volumetric flow rate of a medium stored under pressure in order to activate an impact protection device, and device for activating an impact protection device

#194
20170059047
2017-03-02

Delay valve for a hydraulic work support

#195
20170059045
2017-03-02

Indexer controlled directional valve system

#196
20170030473
2017-02-02

AUTOMATIC SHUTOFF VALVE FOR A PIPELINE

#197
20170029288
2017-02-02

Multi-port flow switching valve

#198
20170023138
2017-01-26

Valve assembly with two spool valves

#199
20170002937
2017-01-05

Directional control valve

#200
20170002732
2017-01-05

Switching valve and internal combustion engine

#201
20160363236
2016-12-15

Rotary actuated valve with position indicator

#202
20160363233
2016-12-15

Piston for pnuematic actuator in high vibration environment

#203
20160363221
2016-12-15

High vibration pneumatic piston assembly made from additive manufacturing

#204
20160356395
2016-12-08

Sensor for connection detection and actuator including same

#205
20160341627
2016-11-24

Valve manifold

#206
20160327184
2016-11-10

Valve trim apparatus having multiple fluid flow control members

#207
20160327177
2016-11-10

Double action direction fluid flow valve

#208
20160319938
2016-11-03

Gas inlet valve with incompatible materials isolation

#209
20160319849
2016-11-03

Adjustable travel stop for a piston actuator

#210
20160305555
2016-10-20

Process chamber gate valve

#211
20160298788
2016-10-13

ACTUATOR

#212
20160290184
2016-10-06

Variable valve actuator

#213
20160281462
2016-09-29

Valve with integral piston

#214
20160281337
2016-09-29

PROPORTIONAL PRESSURE REDUCING VALVE FOR WATERWORKS

#215
20160243572
2016-08-25

Device for supplying a sprayer with a liquid coating product and tool for mounting/dismounting such a device

#216
20160237913
2016-08-18

Full-area bleed valves

#217
20160230612
2016-08-11

Hydraulic valve and cam phaser

#218
20160230611
2016-08-11

Hydraulic valve and cam phaser

#219
20160220781
2016-08-04

Valve with internal member

#220
20160215889
2016-07-28

Butterfly valve with modified scotch yoke connection

#221
20160215661
2016-07-28

Engine valve actuation system

#222
20160201810
2016-07-14

Double sealing valve

#223
20160169099
2016-06-16

Switching valve and internal combustion engine having such a switching valve and a method for a switching valve

#224
20160161017
2016-06-09

HYDRAULIC MOTOR COMPARTMENT WITH HYDRAULIC MOTOR DRIVE

#225
20160158994
2016-06-09

Valve Arrangement

#226
20160146231
2016-05-26

Hydraulic port safety locking device

#227
20160131265
2016-05-12

Cycle valve for use in hydromethanation process

#228
20160124436
2016-05-05

Apparatus, methods and articles of manufacture to calibrate valve-mounted instruments

#229
20160123475
2016-05-05

Dual seat valve

#230
20160108586
2016-04-21

Fluid delivery device, injection device, ground milling machine, and method

#231
20160102780
2016-04-14

Cushioned check valve

#232
20160102778
2016-04-14

Hydraulic actuator lockout

#233
20160098045
2016-04-07

Aircraft hydraulic valve

#234
20160069468
2016-03-10

VACUUM VALVE

#235
20160069272
2016-03-10

Device for the extraction of bleed air and aircraft engine with at least one device for the extraction of bleed air

#236
20160053903
2016-02-25

Timing valve and kick-down valve

#237
20160052184
2016-02-25

End of stroke actuator bleed

#238
20160040564
2016-02-11

Actuator for axial displacement of an object

#239
20150376986
2015-12-31

Fusible, resettable lock open device

#240
20150369370
2015-12-24

Manual and pressurized fluid controlled fluid controller

#241
20150369262
2015-12-24

Fluid pressure control device

#242
20150369133
2015-12-24

Sliding contact wear surfaces coated with PTFE/aluminum oxide thermal spray coating

#243
20150330501
2015-11-19

Oil supply device

#244
20150323083
2015-11-12

Valve, in particular pilot-operated proportional directional poppet valve

#245
20150308426
2015-10-29

Unloader valve apparatus for an air compressor

#246
20150292645
2015-10-15

Stopper control device

#247
20150267706
2015-09-24

Method and system for tuning a turbine using a secondary injection valve

#248
20150260305
2015-09-17

Shut-off valve

#249
20150240666
2015-08-27

Valve poppet element defining balance chamber

#250
20150226349
2015-08-13

Valve arrangement

#251
20150217351
2015-08-06

Nozzle

#252
20150210243
2015-07-30

Device and method for controlling a volume flow of a stored pressurized medium for the purpose of activating an impact protection device as well as a device for activating an impact protection device

#253
20150167860
2015-06-18

Check valve

#254
20150144817
2015-05-28

SHUTOFF VALVE

#255
20150115191
2015-04-30

Diaphragm valve

#256
20150090347
2015-04-02

Fluid valve, in particular a return valve for a painting system

#257
20150089815
2015-04-02

Cable stripper and cutting assembly for stripping a cable

#258
20150083945
2015-03-26

Valve actuator system

#259
20150076381
2015-03-19

System and method for controlling a compressor inlet valve

#260
20150076378
2015-03-19

Actuator

#261
20150076377
2015-03-19

Power boost assist closed device for actuators

#262
20150069275
2015-03-12

Hybrid manual and hydraulic actuator override

#263
20150060714
2015-03-05

Bidirectional travel stop assembly for compact actuator

#264
20150060709
2015-03-05

Sprung gate valves movable by a solenoid actuator

#265
20150034187
2015-02-05

Force multiplying solenoid valve

#266
20150027547
2015-01-29

Hydraulic valve with helical actuator

#267
20150020897
2015-01-22

Pneumatically drivable valve actuator and method of locking a valve closure element relative to a valve body

#268
20150020893
2015-01-22

Locking poppet valve

#269
20150004036
2015-01-01

Relief valve assembly and components thereof

#270
20140374118
2014-12-25

Blowout preventer activator and method of using same

#271
20140353532
2014-12-04

Double action direction fluid flow valve

#272
20140352790
2014-12-04

Pneumatic directional valve and method of operation

#273
20140346379
2014-11-27

BACKFLOW PREVENTION VALVE

#274
20140332039
2014-11-13

Quiet pulse valve

#275
20140312250
2014-10-23

Flow regulating valve subassembly

#276
20140299801
2014-10-09

Magnetorheological fluid device

#277
20140264101
2014-09-18

Device for Controlling the Fluid Supply of a System

#278
20140231682
2014-08-21

Flow regulating device

#279
20140225013
2014-08-14

Valve manifold

#280
20140224343
2014-08-14

Anti-cavitation throttle valve and method of operating the same

#281
20140166131
2014-06-19

Swivel top shaft valve actuator

#282
20140096676
2014-04-10

Cylindrical liner for piston actuator

#283
20140090589
2014-04-03

Thru-hull fitting and manufacturing method

#284
20140077109
2014-03-20

Fluid control valve

#285
20140061516
2014-03-06

Stabilized valve

#286
20140034856
2014-02-06

Pneumatic control valve and assembling method thereof

#287
20140030372
2014-01-30

Controlled valve fittings device for an installation for the blow-moulding of containers comprising individually operable valves

#288
20130306333
2013-11-21

Dry pipe valve and system

#289
20130306319
2013-11-21

Hydraulic pulse valve with improved pulse control

#290
20130281253
2013-10-24

Latching clutch control system

#291
20130276892
2013-10-24

PNEUMATIC BUTTERFLY VALVE

#292
20130270467
2013-10-17

Valve Manifold

#293
20130269784
2013-10-17

Pneumatic actuator with container installation detection

#294
20130256570
2013-10-03

VALVE AND HYDRAULIC CONTROLLER

#295
20130234055
2013-09-12

Dual piston pneumatic actuator

#296
20130233416
2013-09-12

Control head for a fluid-actuated valve

#297
20130233396
2013-09-12

Latching clutch valve

#298
20130220453
2013-08-29

Fast switching hydraulic pilot valve with hydraulic feedback

#299
20130214185
2013-08-22

VALVE ACTUATOR WITH VENT

#300
20130207011
2013-08-15

Driving and adjusting device of passive shuttle-type shut-off valve