ClassID:

152456

F16K31/1221 - page 2 - CPC Classification

Classification description:

Operating means Actuating devices; ; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded

Recent Application in this class:
#301
20180216486
2018-08-02

Hydraulic driving device for steam valve, combined steam valve, and steam turbine

#302
20180209557
2018-07-26

Check valve

#303
20180209553
2018-07-26

Check valve and method of forming a check valve

#304
20180195636
2018-07-12

Diaphragm valve

#305
20180195510
2018-07-12

Dual-stage pump with switching valve

#306
20180195491
2018-07-12

Hydrostatic axial piston motor of bent-axis construction

#307
20180188749
2018-07-05

Hydraulic valve for dampening pressure spikes, and associated systems and methods

#308
20180185861
2018-07-05

Needle valve

#309
20180185629
2018-07-05

Apparatus for irrigation with negative pressure

#310
20180172177
2018-06-21

Hydraulic drive for executing a linear movement

#311
20180171818
2018-06-21

Systems and methods for protecting a turbomachine

#312
20180169673
2018-06-21

Coating agent valve

#313
20180160691
2018-06-14

Dehider regulator valve

#314
20180154712
2018-06-07

Pneumatic valve for actuating pedals of a tire changer

#315
20180142804
2018-05-24

Process medium-controlled regulating valve

#316
20180142615
2018-05-24

Variable compression ratio apparatus

#317
20180140822
2018-05-24

Apparatus for negative-pressure therapy and irrigation

#318
20180136672
2018-05-17

Pressure reducing valve device

#319
20180135776
2018-05-17

Angle valve having fixed heater block

#320
20180135762
2018-05-17

Beverage dispensers with adjustable valves

#321
20180128390
2018-05-10

Differential pressure type inflating device

#322
20180119516
2018-05-03

Fluid flow control systems and methods

#323
20180112784
2018-04-26

Ball valve with pressure relief feature

#324
20180112783
2018-04-26

Compressor surge protection

#325
20180106389
2018-04-19

Temperature sensitive valve

#326
20180106385
2018-04-19

Diaphragm valve

#327
20180100603
2018-04-12

Pressure valve

#328
20180100588
2018-04-12

Dual parallel hydraulic actuator

#329
20180094744
2018-04-05

Sprung gate valves movable by an actuator

#330
20180094739
2018-04-05

Valve assembly

#331
20180094405
2018-04-05

Fluid pressure control device

#332
20180087678
2018-03-29

Fluid controller

#333
20180073659
2018-03-15

Sanitary high pressure aerator valve assembly

#334
20180073648
2018-03-15

Hydrant valve with internal shut-off valve

#335
20180072117
2018-03-15

Rapid opening gas valve

#336
20180058442
2018-03-01

Hydraulic regulating device

#337
20180051820
2018-02-22

RIGHT ANGLE VALVE

#338
20180045118
2018-02-15

PRESSURE REGULATING VALVE WITH FLOW ANTI-ROTATION

#339
20180038509
2018-02-08

Valve actuating system

#340
20180038506
2018-02-08

Valve

#341
20180038474
2018-02-08

Lubrication system with passive valve

#342
20180031139
2018-02-01

Actuator

#343
20180024577
2018-01-25

Pressure-limiting valve

#344
20180023726
2018-01-25

Flow rate adjusting device

#345
20180023725
2018-01-25

No-bolt security latching system

#346
20180023713
2018-01-25

PILOT VALVE

#347
20180023710
2018-01-25

Valve assembly with adjustable spring seat

#348
20180017977
2018-01-18

Differential pressure regulating shut-off valve

#349
20180016861
2018-01-18

Valve with balanced blind seal ring

#350
20180010706
2018-01-11

Pressure regulator

#351
20180010700
2018-01-11

Valve with a control space vented via a sealing groove

#352
20180003314
2018-01-04

Pump and a valve assembly therefor

#353
20180003311
2018-01-04

Piston sensor with baffle plate

#354
20180003198
2018-01-04

ROTARY ACTUATOR

#355
20180001883
2018-01-04

Valve assembly and system including same for controlling fluid flow to and from a clutch

#356
20170370482
2017-12-28

SUB-PLATE MOUNTED VALVE

#357
20170363223
2017-12-21

Thermostat valve and method for operating a thermostat valve

#358
20170363203
2017-12-21

Switch valve assembly and hydraulic control module including same

#359
20170357276
2017-12-14

Pressure maintaining valve for a reversible connection to an air line

#360
20170356547
2017-12-14

Piston ring assembly

#361
20170356348
2017-12-14

Altitude compensating bleed valve

#362
20170344030
2017-11-30

Multi-stage flow control assemblies

#363
20170328490
2017-11-16

Valve actuating device with opening reduced speed

#364
20170328489
2017-11-16

Method of controlling a valve and valve

#365
20170322565
2017-11-09

Flow-rate adjustable valve

#366
20170321819
2017-11-09

Reverse taper piston for pneumatic actuators

#367
20170314702
2017-11-02

Hydraulic valve with adjustable locking device

#368
20170314374
2017-11-02

VARIABLE APERTURE FLOW CONTROL MECHANISM FOR GAS LIFT VALVES

#369
20170309932
2017-10-26

Anode discharge valve for fuel cell system

#370
20170299082
2017-10-19

Actuator with torsional spring assembly

#371
20170292633
2017-10-12

ACTIVELY COOLED VACUUM ISOLATION VALVE

#372
20170292542
2017-10-12

Multistage piston actuator

#373
20170284554
2017-10-05

DEAERATION VALVE

#374
20170276251
2017-09-28

Orifice module for flow switch system

#375
20170274408
2017-09-28

Modular jetting devices

#376
20170268660
2017-09-21

Assembly for blocking and enabling a shifting position of a shifting element

#377
20170268421
2017-09-21

HYDRAULIC VALVE FOR SHIFTING AN ACTUATION PISTON OF A CONNECTING ROD

#378
20170261121
2017-09-14

Rotary actuator, and beverage filling system

#379
20170261119
2017-09-14

Valve actuation system

#380
20170261118
2017-09-14

Flow limiter valve

#381
20170261008
2017-09-14

Speed controller

#382
20170248241
2017-08-31

Distribution device for hydraulic machine

#383
20170241563
2017-08-24

VALVE ASSEMBLY AND METHOD

#384
20170240144
2017-08-24

DEVICE FOR CHANGING BRAKE OIL

#385
20170234452
2017-08-17

Degressive pneumatic actuator spring rate

#386
20170234176
2017-08-17

Automotive lubricant pumping system with two piece relief valve

#387
20170234106
2017-08-17

Flow control device

#388
20170211719
2017-07-27

Extended stroke, high flow, valve and the assembly made therewith

#389
20170211710
2017-07-27

Non-interflow directional control valve

#390
20170191567
2017-07-06

Valve for controlling coolant flow and fuel cell cooling system using the same

#391
20170184215
2017-06-29

Partial stroke tests for shutdown valves

#392
20170184208
2017-06-29

Apparatus to bias spool valves using supply pressure

#393
20170184206
2017-06-29

Fluid controller with diaphragm

#394
20170184204
2017-06-29

Valve element and high-temperature-oriented valve

#395
20170175923
2017-06-22

HYDRAULIC ACTUATOR WITH SPRING RETURN

#396
20170175921
2017-06-22

Double action direction fluid flow valve

#397
20170152964
2017-06-01

Valve device for controlling media flows of any type

#398
20170130862
2017-05-11

PRESSURE REDUCING VALVE

#399
20170130855
2017-05-11

Pressure Assisted Two-Position Three-Way Poppet Valve

#400
20170130745
2017-05-11

Valve having right-angle proportional and directional pilot actuators

#401
20170115673
2017-04-27

Pressure regulating valve

#402
20170102087
2017-04-13

Control Assembly for a Valve

#403
20170097103
2017-04-06

Pneumatic valve

#404
20170096908
2017-04-06

Pneumatic trip valve partial stroking arrangement

#405
20170089485
2017-03-30

Valve

#406
20170074422
2017-03-16

Pressure regulator

#407
20170074292
2017-03-16

Fluid pressure control device for construction machine

#408
20170068254
2017-03-09

DISTRIBUTOR VALVE ASSEMBLY

#409
20170067563
2017-03-09

Pressure reducer with cap-shaped movable chamber

#410
20170066589
2017-03-09

Sanitary high pressure aerator valve assembly

#411
20170060147
2017-03-02

BACK PRESSURE CONTROL REGULATOR WITH IN-LINE OVERPRESSURE RELIEF

#412
20170059047
2017-03-02

Delay valve for a hydraulic work support

#413
20170051644
2017-02-23

Fluid control valve

#414
20170037980
2017-02-09

Hybrid check valve

#415
20170028352
2017-02-02

Variable drain flow restrictor

#416
20170023143
2017-01-26

TRANSMISSION ELEMENT DEVICE FOR TWO-WAY TIMING

#417
20170016544
2017-01-19

Valve Device for Controlling and Adjusting Fluid Passage

#418
20170016214
2017-01-19

Fluid flow monitoring, verification and control system and method

#419
20170009785
2017-01-12

Multi-chamber diaphragm actuator with synchronized supply system

#420
20160370812
2016-12-22

Valve device having passage defining member holding restrictor body without connection portion

#421
20160357198
2016-12-08

Pressure relief vavle

#422
20160356391
2016-12-08

Hydraulic valve with adjustable locking device

#423
20160341329
2016-11-24

Fluid control valve

#424
20160339891
2016-11-24

Pneumatic control valve

#425
20160334022
2016-11-17

Control valve for a camshaft adjuster

#426
20160332639
2016-11-17

Metering device for granular material

#427
20160327177
2016-11-10

Double action direction fluid flow valve

#428
20160319939
2016-11-03

High-flow valve arrangement in steam turbine safety system

#429
20160319938
2016-11-03

Gas inlet valve with incompatible materials isolation

#430
20160319812
2016-11-03

Pneumatic timing valve

#431
20160281878
2016-09-29

Hydraulic valve device

#432
20160281876
2016-09-29

Compound express actuator connection

#433
20160273673
2016-09-22

Valve device and use of such a valve device

#434
20160273304
2016-09-22

Variable diameter piston assembly for safety valve

#435
20160271637
2016-09-22

Device for supplying a sprayer with a liquid coating product

#436
20160265309
2016-09-15

Magnetic spring booster for subsurface safety valve

#437
20160263605
2016-09-15

Device for supplying a sprayer with a liquid coating product

#438
20160245425
2016-08-25

Actuator for a valve

#439
20160236667
2016-08-18

Relay valve, valve device, and vehicle associated therewith

#440
20160230906
2016-08-11

Vacuum valve

#441
20160230902
2016-08-11

Valve

#442
20160230900
2016-08-11

Valve device

#443
20160230780
2016-08-11

Valve device and hydraulic system

#444
20160224031
2016-08-04

Flow control valve

#445
20160220781
2016-08-04

Valve with internal member

#446
20160215661
2016-07-28

Engine valve actuation system

#447
20160199857
2016-07-14

Modular jetting devices

#448
20160195196
2016-07-07

Manual reset hydraulic valve latch for a hydraulically controlled valve

#449
20160186884
2016-06-30

ACTUATING DEVICE AND METHOD FOR ACTUATING A VALVE

#450
20160167458
2016-06-16

Vehicle wheel assembly

#451
20160153578
2016-06-02

Slow-shift SPM valve

#452
20160153551
2016-06-02

Hydraulic control arrangement for an automatic transmission

#453
20160146231
2016-05-26

Hydraulic port safety locking device

#454
20160136664
2016-05-19

Piezo-pneumatic valve driving type dispensing pump and method of dispensing viscous liquid by using the pump

#455
20160131263
2016-05-12

Die casting mold evacuation valve assembly

#456
20160123491
2016-05-05

Valve device, fluid control apparatus, and semiconductor manufacturing apparatus

#457
20160123481
2016-05-05

Pilot hydraulic system for operating control valve

#458
20160102765
2016-04-14

No-bolt security latching system

#459
20160097362
2016-04-07

VARIABLE AREA ORIFICE FOR AN ENGINE

#460
20160084402
2016-03-24

Methods and apparatus to assemble actuators

#461
20160084369
2016-03-24

Lubrication system with passive valve

#462
20160076557
2016-03-17

Counterbalance valve with dual or triple pilot ratio

#463
20160069471
2016-03-10

Valve arrangement

#464
20160047480
2016-02-18

Valve and assembly method

#465
20160040798
2016-02-11

Rapid opening gas valve

#466
20150377383
2015-12-31

Valve comprising a tappet and a sensor

#467
20150354173
2015-12-10

Pressure compensation valve

#468
20150345710
2015-12-03

STEAM VALVE DRIVING DEVICE AND STEAM VALVE

#469
20150330530
2015-11-19

Bypass valve

#470
20150323092
2015-11-12

Fluid controller actuator

#471
20150300523
2015-10-22

Valve assembly

#472
20150285392
2015-10-08

Vent valve and method of use

#473
20150285382
2015-10-08

Vacuum valve seal

#474
20150268672
2015-09-24

Pressure regulator for hydrogen storage system

#475
20150219238
2015-08-06

Valve controller with flapper nozzle pilot valve

#476
20150205306
2015-07-23

Pressure-reducing valve having a residual pressure function built into the reducing valve

#477
20150204456
2015-07-23

Combination diaphragm piston actuator

#478
20150203204
2015-07-23

Compact check valve for aircraft galley plumbing system

#479
20150198186
2015-07-16

Inertially stable actuator with telescoping supply port

#480
20150190819
2015-07-09

High speed jet blocker with readily replaceable blocking material

#481
20150168959
2015-06-18

FLOW CONTROL VALVE AND FLOW CONTROL SYSTEM USING SAME

#482
20150167853
2015-06-18

Diaphragm with flange and annular ridge and diaphragm valve using the same

#483
20150167555
2015-06-18

Fluid circuit in a turbine engine

#484
20150159771
2015-06-11

Valve for fuel circuit of an aircraft engine

#485
20150144816
2015-05-28

Gate valve with pneumatic system for shearing application

#486
20150143989
2015-05-28

Actuating device for a rotatable closure part of a valve

#487
20150129791
2015-05-14

Valve apparatus

#488
20150129070
2015-05-14

Apparatus to bias spool valves using supply pressure

#489
20150107701
2015-04-23

Regulator valve

#490
20150107263
2015-04-23

Pneumatic control valve

#491
20150083945
2015-03-26

Valve actuator system

#492
20150076378
2015-03-19

Actuator

#493
20150065956
2015-03-05

Systems and methods for monitoring an injection procedure

#494
20150060708
2015-03-05

BELLOWS VALVE WITH VALVE BODY CYLINDER ADAPTER

#495
20150053874
2015-02-26

PISTON-FORMAT WORKING-FLUID-PRESSURE ACTUATOR AND CONTROL VALVE

#496
20150033941
2015-02-05

Linear actuator and vacuum control device

#497
20150027547
2015-01-29

Hydraulic valve with helical actuator

#498
20150013805
2015-01-15

Change-over valve

#499
20150001431
2015-01-01

Valve with force generating element

#500
20140361204
2014-12-11

Hydraulically controlled storage chamber valve

#501
20140361203
2014-12-11

Pneumatically actuated liquid dispensing valve

#502
20140360599
2014-12-11

Fluid regulator

#503
20140353534
2014-12-04

Sprung gate valves movable by an actuator

#504
20140346385
2014-11-27

Flow regulating apparatus

#505
20140319389
2014-10-30

Automatic Increased-Suction Relief Apparatus

#506
20140299799
2014-10-09

Spool valve

#507
20140299798
2014-10-09

Pinch valve

#508
20140263738
2014-09-18

Jetting devices

#509
20140246898
2014-09-04

Hydraulically Actuated Regulating Valve for a Vehicle Brake System, and Associated Vehicle Brake System

#510
20140224364
2014-08-14

Diaphragm valve

#511
20140197345
2014-07-17

Piston actuator controlling a valve and method for operating the same

#512
20140193284
2014-07-10

Air regulator, in particular for screw compressors

#513
20140183385
2014-07-03

Quick connect valve actuator

#514
20140182865
2014-07-03

Dry pilot actuator

#515
20140174564
2014-06-26

Valve module

#516
20140161636
2014-06-12

Hydro-pneumatic system with pressure limiting valve

#517
20140137960
2014-05-22

Non-rising stem actuator

#518
20140117264
2014-05-01

Vacuum valve

#519
20140103244
2014-04-17

Self-regulated compact-geometry valve assembly

#520
20140070126
2014-03-13

Valve assembly

#521
20140061522
2014-03-06

Valve Actuator with Degressive Characteristic Spring

#522
20140053387
2014-02-27

Methods and apparatus to assemble actuators

#523
20140034856
2014-02-06

Pneumatic control valve and assembling method thereof

#524
20130341550
2013-12-26

Two-way valve

#525
20130319551
2013-12-05

Opening degree detection device for automatically operated valve

#526
20130312853
2013-11-28

Compact check valve for aircraft galley plumbing system

#527
20130312843
2013-11-28

Pressure and flow altitude compensated shutoff valve

#528
20130312840
2013-11-28

VALVE ACTUATOR SYSTEM

#529
20130276921
2013-10-24

Valve manifold

#530
20130248001
2013-09-26

Low profile hydraulic actuator

#531
20130234055
2013-09-12

Dual piston pneumatic actuator

#532
20130233395
2013-09-12

Liquid flow control for film deposition

#533
20130230389
2013-09-05

Valve

#534
20130227980
2013-09-05

Expansion valve

#535
20130220455
2013-08-29

Valve device

#536
20130193357
2013-08-01

Manual overrides for valves

#537
20130181148
2013-07-18

AIR-OPERATED VALVE

#538
20130168587
2013-07-04

Mounting assemblies for use with fluid control devices

#539
20130168582
2013-07-04

Valve actuator

#540
20130168580
2013-07-04

Fail-safe apparatus for use with fluid valves

#541
20130153044
2013-06-20

Apparatus for flow regulation

#542
20130133405
2013-05-30

SHUT-OFF VALVE TESTING SYSTEM

#543
20130048759
2013-02-28

Modular jetting devices

#544
20130008530
2013-01-10

Pressure regulating valve

#545
20120326070
2012-12-27

Double action directional fluid flow valve

#546
20120280153
2012-11-08

VALVE WITH AT LEAST ONE CLOSING BODY

#547
20120241022
2012-09-27

Relief valve device

#548
20120168652
2012-07-05

Pneumatically actuated liquid dispensing valve

#549
20120159940
2012-06-28

Pressure Regulating Device, Compressed Air Supply System and Motor Vehicle

#550
20120112112
2012-05-10

Biasing device for use with actuators of fluid valves

#551
20120061595
2012-03-15

Hydraulic axial piston regulating valve and its application

#552
20120033218
2012-02-09

Air-driven shutter device and optical analyzer

#553
20120018542
2012-01-26

Hydraulic stroke transmitter

#554
20120007009
2012-01-12

Method and apparatus for generating high-speed pulsed fluid jets

#555
20110308643
2011-12-22

Pressure regulating valve

#556
20110291037
2011-12-01

Flow adjusting valve

#557
20110278488
2011-11-17

Valve and assembly method

#558
20110266485
2011-11-03

Valve actuator with vent

#559
20110260091
2011-10-27

Aseptic or sanitary diaphragm valve

#560
20110240133
2011-10-06

Ejector valve with glands

#561
20110217909
2011-09-08

Speed control device in a pneumatic power tool

#562
20110180154
2011-07-28

Assembling structure of actuator part of fluid control valve, and fluid control valve formed with the structure

#563
20110175009
2011-07-21

FLUID REGULATOR

#564
20110126920
2011-06-02

Hydraulic valve device

#565
20110079618
2011-04-07

Liquid dispensing module

#566
20110073197
2011-03-31

Combined valve

#567
20110068285
2011-03-24

Automatic increased-suction relief apparatus

#568
20110062365
2011-03-17

Power assisted on/off valve

#569
20110042604
2011-02-24

Device for connecting a valve housing to an actuator in a process valve acting as a lift valve

#570
20110042602
2011-02-24

List valve, particularly for process technology

#571
20100327207
2010-12-30

Biasing apparatus for use with actuators

#572
20100314563
2010-12-16

Drive arrangement for valve devices

#573
20100243929
2010-09-30

Booster valve

#574
20100243084
2010-09-30

Multifunction relief valve and airplane emergency hydraulic power source unit having the same

#575
20100236651
2010-09-23

Valve damping system

#576
20100236632
2010-09-23

Valve actuator system

#577
20100229971
2010-09-16

BACK-PRESSURE RESPONSIVE VALVE

#578
20100224807
2010-09-09

MULTIPLE FLOW-RATE DISPENSING VALVE AND METHOD

#579
20100224804
2010-09-09

Fail safe pneumatically actuated valve with fast time response and adjustable conductance

#580
20100207048
2010-08-19

Suck back valve system and valve-closing-operation control method for the same

#581
20100163767
2010-07-01

Valve

#582
20100163765
2010-07-01

Pneumatic valve actuator having integral status indication

#583
20100122746
2010-05-20

Water dispensing device capable of recycling cold water

#584
20100104456
2010-04-29

Hydro-pneumatic system with pressure limiting valve

#585
20100101666
2010-04-29

Pressure regulator for hydrogen storage system

#586
20100072410
2010-03-25

Actuator for operating valves such as diaphragm valves

#587
20100059125
2010-03-11

Balanced pilot operated check valve

#588
20100038567
2010-02-18

Suck-back valve

#589
20100038566
2010-02-18

VALVE AND ACTUATOR ASSEMBLIES

#590
20100012204
2010-01-21

Valve manifold

#591
20090294709
2009-12-03

Two step valve actuator

#592
20090293971
2009-12-03

Valve having integrated pressure assist mechanism

#593
20090285710
2009-11-19

Compressor unloading valve

#594
20090283155
2009-11-19

Fluid control system

#595
20090266428
2009-10-29

FLUID CONTROL SYSTEM

#596
20090223575
2009-09-10

Ejector valve machine

#597
20090218096
2009-09-03

Control system for an annulus balanced subsurface safety valve

#598
20090212243
2009-08-27

PNEUMATICALLY-OPERATED VALVE FOR NITROUS OXIDE INJECTION SYSTEM

#599
20090179168
2009-07-16

Methods and apparatus for adjusting a spring load in an actuator

#600
20090140196
2009-06-04

FLUID PRESSURE DEVICE AND MANUFACTURING METHOD FOR FLUID PRESSURE DEVICE