ClassID:

152458

F16K31/1225 - CPC Classification

Classification description:

Operating means Actuating devices; ; Releasing devices actuated by fluid the fluid acting on a piston with a plurality of pistons

Recent Application in this class:
#1
20250369533
2025-12-04

ACTUATOR, OPEN/CLOSE VALVE MECHANISM, AND FLUID CONTROL DEVICE

#2
20250237321
2025-07-24

RATE MATCHING HYDRAULIC ACTUATORS ON COMMON CONTROL MANIFOLD

#3
20250237320
2025-07-24

MULTI-FUNCTION FLUID CONTROL VALVE

#4
20250043883
2025-02-06

TWO-WAY DRIVING DEVICE FOR USE WITH VALVE COMPONENT

#5
20250012365
2025-01-09

FLUIDIC DEVICES AND RELATED METHODS

#6
20240351166
2024-10-24

PARTICLE BLAST APPARATUS

#7
20240344417
2024-10-17

PISTON ACTUATED VALVE APPARATUS

#8
20240337329
2024-10-10

Double Seat Valve

#9
20240328536
2024-10-03

Emergency isolation valve control design

#10
20240309964
2024-09-19

Gate valve capable of enhancing accuracy in operation

#11
20240117891
2024-04-11

VALVE FOR THICK MATTER AND METHOD FOR ACTUATING A VALVE FOR THICK MATTER

#12
20240084917
2024-03-14

STEP LIFT CONTROL OF HYDRAULICALLY ACTUATED POPPED VALVES

#13
20230417036
2023-12-28

Pneumatic valve control device

#14
20230392710
2023-12-07

Integrated actuator manifold for multiple valve assembly

#15
20230375093
2023-11-23

Directional and flow control valve and hydraulic system

#16
20230358317
2023-11-09

VALVE FOR COMPRESSED GAS WITH ACTUATING DEVICE OPERABLE BY A ROBOTIC INTERFACE

#17
20230265940
2023-08-24

Drive for a valve and method

#18
20230243438
2023-08-03

Actuator assemblies and related methods for valve systems

#19
20230243437
2023-08-03

Actuator assemblies and related methods for valve systems

#20
20230193610
2023-06-22

Pneumatic valve control device

#21
20230175597
2023-06-08

Pinch valve assembly

#22
20230160492
2023-05-25

Valve manifold arrangements for fluid distribution system

#23
20230112308
2023-04-13

Arrangements and methods for controlled flow rate of pneumatic actuated valves

#24
20230062350
2023-03-02

Valve and cleaning method

#25
20230051577
2023-02-16

Piston actuated valve apparatus

#26
20230046920
2023-02-16

Spring return actuator for rotary valves

#27
20220397203
2022-12-15

ACTUATOR FOR HIGH-PRESSURE VALVE

#28
20220299132
2022-09-22

Actuator assembly for conducting partial stroke testing

#29
20220252179
2022-08-11

Fluid distribution system with manifold assembly

#30
20220196163
2022-06-23

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

#31
20220169224
2022-06-02

Hydropneumatic valve having a mechatronic module

#32
20220082176
2022-03-17

VALVE DEVICE, FLOW CONTROL METHOD, FLUID CONTROL DEVICE, SEMICONDUCTOR MANUFACTURING METHOD, AND SEMICONDUCTOR MANUFACTURING APPARATUS

#33
20220064925
2022-03-03

Hydraulic system including manifold, flush valve, and shut off

#34
20220016574
2022-01-20

Reverse osmosis unit

#35
20210388919
2021-12-16

VALVE DEVICE AND GAS SUPPLY SYSTEMS

#36
20210388908
2021-12-16

Valve member driving device capable of bidirectional movement

#37
20210300129
2021-09-30

Valve assembly and tire inflation system

#38
20210215269
2021-07-15

Fluid control device

#39
20210156436
2021-05-27

Hydraulic control device and marine transmission

#40
20210148279
2021-05-20

Control device for an exhaust gas-conducting section of an exhaust turbocharger

#41
20210108738
2021-04-15

Arrangements and methods for controlled flow rate of pneumatic actuated valves

#42
20210102638
2021-04-08

Adsorption processes and systems utilizing step lift control of hydraulically actuated poppet valves

#43
20210102440
2021-04-08

Hydraulic control system for index downhole valves

#44
20210048111
2021-02-18

Fluid valve

#45
20210048110
2021-02-18

Set of jigs for assembling a valve, and a diaphragm valve assembled with the same

#46
20200400240
2020-12-24

Failsafe close valve assembly

#47
20200386247
2020-12-10

Device and method for ring gate closing optimization

#48
20200354936
2020-11-12

Hydraulic system including manifold, flush valve, and shut off

#49
20200348699
2020-11-05

Valve device

#50
20200318754
2020-10-08

Fluid control valve

#51
20200277839
2020-09-03

System and methodology for controlling actuation of devices downhole

#52
20200248831
2020-08-06

Integrated actuator manifold for multiple valve assembly

#53
20200232456
2020-07-23

Pump for liquid product comprising a sealing device and spraying installation comprising such a pump

#54
20200225686
2020-07-16

Valve and fluid supply line

#55
20200208755
2020-07-02

Low noise gate valve

#56
20200131985
2020-04-30

Length-adjustable connecting rod with control device

#57
20200102974
2020-04-02

Device and Method for Ring Gate Closing Optimization

#58
20200101883
2020-04-02

Pneumatic valve

#59
20200031177
2020-01-30

System for inflating—deflating a tyre

#60
20200004274
2020-01-02

Pressure regulating valve with multi-faced piston and fluid boost chamber

#61
20190390792
2019-12-26

Vacuum valve

#62
20190375620
2019-12-12

Filling machine including two-stage actuator for filling valve

#63
20190331060
2019-10-31

Solenoid-controlled, liquid cryogenic-hydraulically actuated isolation valve assembly

#64
20190321942
2019-10-24

Particle blast apparatus

#65
20190309865
2019-10-10

Positive pressure relief valve

#66
20190301627
2019-10-03

Passive valve

#67
20190285176
2019-09-19

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

#68
20190284897
2019-09-19

BOP compact bonnet-booster (CBB) piston assembly and method

#69
20190195385
2019-06-27

Three-position valve and pneumatic actuator therefor

#70
20190178394
2019-06-13

Fluid control valve and fluid control valve assembling method

#71
20190101070
2019-04-04

Pressure regulating modules with controlled leak paths

#72
20190101031
2019-04-04

Regenerative valve hydraulic actuator

#73
20190093788
2019-03-28

Assembly comprising a valve unit, a suck-back unit and a valve body

#74
20190093772
2019-03-28

Diaphragm valve assembling method, diaphragm valve assembly structure, and diaphragm valve

#75
20190072452
2019-03-07

VALVE MANIFOLD

#76
20180355999
2018-12-13

Multi-position rotary actuator controlled by a fluid

#77
20180347717
2018-12-06

Dual cylinder pressure equalization system

#78
20180347304
2018-12-06

BOP compact bonnet-booster (CBB) piston assembly and method

#79
20180292021
2018-10-11

Multifunctional sanitary valve and method of operating such

#80
20180283563
2018-10-04

Metal diaphragm valve

#81
20180274695
2018-09-27

Vacuum valve

#82
20180274444
2018-09-27

Valve assembly with oil shut-off valve

#83
20180245712
2018-08-30

Setup of valve controller

#84
20180216486
2018-08-02

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

#85
20180172178
2018-06-21

Integrated stability and control augmentation system

#86
20180163877
2018-06-14

VALVE

#87
20180100588
2018-04-12

Dual parallel hydraulic actuator

#88
20180087678
2018-03-29

Fluid controller

#89
20180087549
2018-03-29

Rotary drive having a position detection device and calibration method

#90
20180051825
2018-02-22

Vacuum valve

#91
20180038504
2018-02-08

Pneumatic mixing valve

#92
20180017977
2018-01-18

Differential pressure regulating shut-off valve

#93
20170350097
2017-12-07

Flow control valve for construction machine

#94
20170344030
2017-11-30

Multi-stage flow control assemblies

#95
20170343104
2017-11-30

Valve device for a vehicle, automatic transmission and method for controlling a valve device

#96
20170343020
2017-11-30

Intermittent air discharge apparatus

#97
20170328316
2017-11-16

Multi-chamber blowoff valve

#98
20170234442
2017-08-17

Intelligent pressure relief device for a double isolation valve

#99
20170234176
2017-08-17

Automotive lubricant pumping system with two piece relief valve

#100
20170211719
2017-07-27

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

#101
20170186633
2017-06-29

Substrate processing system

#102
20170184206
2017-06-29

Fluid controller with diaphragm

#103
20170130559
2017-05-11

Ball valve having dual pistons each individually actuable

#104
20170102088
2017-04-13

Secondary thrust wireline shearing valve

#105
20170097105
2017-04-06

Flow control valve having a motion conversion device

#106
20170097103
2017-04-06

Pneumatic valve

#107
20170097100
2017-04-06

Latching poppet valve

#108
20170067573
2017-03-09

Hybrid manual and hydraulic override

#109
20170060147
2017-03-02

BACK PRESSURE CONTROL REGULATOR WITH IN-LINE OVERPRESSURE RELIEF

#110
20170023143
2017-01-26

TRANSMISSION ELEMENT DEVICE FOR TWO-WAY TIMING

#111
20170016555
2017-01-19

Pneumatic mixing valve

#112
20170009785
2017-01-12

Multi-chamber diaphragm actuator with synchronized supply system

#113
20160356120
2016-12-08

Well flow control assemblies and associated methods

#114
20160341627
2016-11-24

Valve manifold

#115
20160258250
2016-09-08

Multiple piston assembly for safety valve

#116
20160230900
2016-08-11

Valve device

#117
20160215889
2016-07-28

Butterfly valve with modified scotch yoke connection

#118
20160186885
2016-06-30

Integrating valve with soft start

#119
20160178083
2016-06-23

Fluid-operated drive

#120
20160123492
2016-05-05

Flow control valve having a motion conversion device

#121
20160061335
2016-03-03

Shut-off device and gate valve with a shut-off device

#122
20160003370
2016-01-07

Low pressure shut off for a pneumatic tool

#123
20160001436
2016-01-07

Positive feed tool with a modular architecture

#124
20160001435
2016-01-07

Positive feed tool with a slip clutch and a method, to prevent jamming

#125
20160001409
2016-01-07

Positive feed tool with interchangeable gears to adjust a feed rate

#126
20160001408
2016-01-07

Positive feed tool with improved shift from forward to retract

#127
20150377371
2015-12-31

Intelligent Pressure Relief Device For A Double Isolation Valve

#128
20150369370
2015-12-24

Manual and pressurized fluid controlled fluid controller

#129
20150369005
2015-12-24

Stacked piston safety valve with different piston diameters

#130
20150323092
2015-11-12

Fluid controller actuator

#131
20150316170
2015-11-05

Multiple piston pressure intensifier for a safety valve

#132
20150315975
2015-11-05

Integral filter and regulator for valve

#133
20150308584
2015-10-29

Valve

#134
20150226580
2015-08-13

Rotary position indicator for actuator

#135
20150226349
2015-08-13

Valve arrangement

#136
20150152970
2015-06-04

Repairable cartridge valve

#137
20150152959
2015-06-04

Multiple-ratio boost valve

#138
20150083946
2015-03-26

Actuator for a valve and a valve comprising such actuator

#139
20150083259
2015-03-26

Diaphragm-sealed valve with improved actuator design

#140
20150076377
2015-03-19

Power boost assist closed device for actuators

#141
20150069275
2015-03-12

Hybrid manual and hydraulic actuator override

#142
20150060708
2015-03-05

BELLOWS VALVE WITH VALVE BODY CYLINDER ADAPTER

#143
20150027547
2015-01-29

Hydraulic valve with helical actuator

#144
20140366965
2014-12-18

Integral filter and regulator for valve

#145
20140311600
2014-10-23

Drive for switching a double seat valve

#146
20140238711
2014-08-28

Positive feed tool with a modular architecture

#147
20140224364
2014-08-14

Diaphragm valve

#148
20140183383
2014-07-03

Valve

#149
20140130876
2014-05-15

Method of two-stage flow control

#150
20140117264
2014-05-01

Vacuum valve

#151
20140109989
2014-04-24

Hydraulic valve arrangement

#152
20140102386
2014-04-17

Pressure pulse generator

#153
20140060684
2014-03-06

Hydraulic actuating assembly

#154
20140020778
2014-01-23

Protection valve

#155
20130334449
2013-12-19

Hydraulic mechanism for valves

#156
20130292589
2013-11-07

Large-scale hydraulic variable-speed floating box flap valve

#157
20130234055
2013-09-12

Dual piston pneumatic actuator

#158
20130233389
2013-09-12

HYDRAULIC ACTUATORS

#159
20130168580
2013-07-04

Fail-safe apparatus for use with fluid valves

#160
20130161145
2013-06-27

Drive having an emergency closing function

#161
20130126010
2013-05-23

Valve arrangement

#162
20130112781
2013-05-09

Thermally volume-neutral stroke transmitter, in particular for metering valve without hydraulic compensator

#163
20130037148
2013-02-14

FLUID VALVES HAVING MULTIPLE FLUID FLOW CONTROL MEMBERS

#164
20130037146
2013-02-14

FLUID VALVES HAVING MULTIPLE FLUID FLOW CONTROL MEMBERS

#165
20130020519
2013-01-24

Dual piston actuator and method of use

#166
20120319024
2012-12-20

Fluid control device

#167
20120298892
2012-11-29

Multi-stage switchable pilot-controlled valve arrangement

#168
20120255276
2012-10-11

Load limited actuator

#169
20120153193
2012-06-21

Two-stage, slow-start valve apparatus

#170
20120138396
2012-06-07

Control valve system

#171
20120119129
2012-05-17

Air-operated valve

#172
20110309282
2011-12-22

Device for driving a double seat valve

#173
20110297864
2011-12-08

In line flow control components and systems

#174
20110290337
2011-12-01

Intelligent Pressure Relief Device For A Double Isolation Valve

#175
20110126920
2011-06-02

Hydraulic valve device

#176
20110088427
2011-04-21

Control Valve and Air Conditioner Equipped with the Valve

#177
20110073197
2011-03-31

Combined valve

#178
20100320408
2010-12-23

FLUID CONTROLLER

#179
20100243068
2010-09-30

Servo pressure control valve

#180
20100187454
2010-07-29

Actuator having an override apparatus

#181
20100138051
2010-06-03

METHOD AND ARRANGEMENT FOR ACTUATION

#182
20100090151
2010-04-15

Direct touch type metal diaphragm valve

#183
20100072411
2010-03-25

Double seat valve apparatus

#184
20090302260
2009-12-10

Valve

#185
20090140191
2009-06-04

Device for actuating a process valve for use in foodstuffs technology

#186
20090078895
2009-03-26

Flow Control Valve

#187
20090050832
2009-02-26

Normally-closed valve having a microflow rate adjusting device

#188
20080169701
2008-07-17

Control valve system

#189
20080099703
2008-05-01

Three position shutoff valve

#190
20080017824
2008-01-24

Valve status monitoring

#191
20080011974
2008-01-17

MULTIPOSITION ANGLE VALVE

#192
20070290154
2007-12-20

Air-operated valve

#193
20070007012
2007-01-11

Flow completion system

#194
20060266420
2006-11-30

Fluid control devices

#195
20060197049
2006-09-07

Fluid operating valve

#196
20060192425
2006-08-31

Control valve system

#197
20060191777
2006-08-31

Flow control device with flow adjustment mechanism

#198
20060108550
2006-05-25

Device for actuating double seat valves

#199
20060096210
2006-05-11

Wall and/or floor tile and method and apparatus for its production

#200
20050247343
2005-11-10

Device for actuating double seat valves

#201
20050242312
2005-11-03

Two-port valve for vacuum operation

#202
20050211302
2005-09-29

Valve arrangement in a hydraulic circuit, use of the same and arrangement for controlling a hydraulic vehicle drive

#203
20050139061
2005-06-30

Stackable actuator housing

#204
20050098748
2005-05-12

Control valve

#205
20050092171
2005-05-05

Balanced fluid-powered modular actuation system

#206
20050012058
2005-01-20

Piston actuator incorporating partitioned pressure chambers

#207
20050006609
2005-01-13

Suck back valve

#208
18535388
2024-12-31

High flow, insert safety valve, well pressure insensitive

#209
16950960
2022-04-12

Hydraulic valve spool assembly with metering land sections