ClassID:

152474

F16K31/1635 - CPC Classification

Classification description:

Operating means Actuating devices; ; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member the fluid acting on a piston for rotating valves

Recent Application in this class:
#1
20250354622
2025-11-20

Valve Actuator Device for Fluid Flow Control

#2
20250215996
2025-07-03

SYSTEM FOR REGULATING THE FLOW OF A FLUID

#3
20250020042
2025-01-16

FLUID DENSITY VALVE, METHOD, AND SYSTEM

#4
20240191812
2024-06-13

Valve Actuator Device for Fluid Flow Control

#5
20240052944
2024-02-15

Hydraulic transmission unit, particularly for deep-sea use

#6
20230304599
2023-09-28

System for regulating the flow of a fluid

#7
20230265941
2023-08-24

Removably mounted actuator assembly

#8
20220403860
2022-12-22

Electrohydraulic system for a valve

#9
20220364657
2022-11-17

Hydraulic low-torque valve conversion apparatus and method

#10
20220235880
2022-07-28

Partial stroke tests for shutdown valves

#11
20220163133
2022-05-26

Electrohydraulic system having an adjustment device for a valve

#12
20220146016
2022-05-12

System and method for monitoring and diagnostics of an actuator device for actuation of a valve for fluid pipelines, and actuator device forming part of this system

#13
20210138283
2021-05-13

Combination control and check valve assembly for a wet piping system

#14
20210102640
2021-04-08

VALVE ASSEMBLY AND METHOD OF COOLING

#15
20210025302
2021-01-28

Externally mounted in-line exhaust gas valve

#16
20210025301
2021-01-28

Externally mounted in-line exhaust gas valve

#17
20200347944
2020-11-05

Nut locking coupling for actuated valve

#18
20200292098
2020-09-17

Manufacture of actuators and control valve assemblies

#19
20200232577
2020-07-23

PRESSURE REGULATING STARTER VALVE

#20
20200158254
2020-05-21

Cooling apparatus for internal combustion engine

#21
20200080662
2020-03-12

Valve assembly and method of cooling

#22
20200072116
2020-03-05

Cooling system valve

#23
20200011451
2020-01-09

Partial stroke tests for shutdown valves

#24
20190301625
2019-10-03

Combination control and check valve assembly for a wet piping system

#25
20190072205
2019-03-07

CONTROL VALVE FOR A PROCESS PLANT

#26
20180355999
2018-12-13

Multi-position rotary actuator controlled by a fluid

#27
20180238356
2018-08-23

Electro-hydraulic actuator

#28
20180209396
2018-07-26

Shutter valve and device for generating energy from sea waves comprising such valves

#29
20180195621
2018-07-12

Filter for pneumatic valve

#30
20180172032
2018-06-21

Rotary actuator with position feedback device and process valve module

#31
20180156353
2018-06-07

Solenoid valve

#32
20180156245
2018-06-07

Rotary Drive with Functional Module Arrangement

#33
20180094746
2018-04-05

Methods and apparatus for automatically detecting the failure configuration of a pneumatic actuator

#34
20180087549
2018-03-29

Rotary drive having a position detection device and calibration method

#35
20180080575
2018-03-22

Valve control device

#36
20180080574
2018-03-22

Manufacture of actuators and control valve assemblies

#37
20180003198
2018-01-04

ROTARY ACTUATOR

#38
20170370482
2017-12-28

SUB-PLATE MOUNTED VALVE

#39
20170363121
2017-12-21

Hydraulic actuator to which limit-adjustable mechanical lock device is applied

#40
20170261121
2017-09-14

Rotary actuator, and beverage filling system

#41
20170254439
2017-09-07

Actuating system for a quarter-turn rotary valve

#42
20170234452
2017-08-17

Degressive pneumatic actuator spring rate

#43
20170184215
2017-06-29

Partial stroke tests for shutdown valves

#44
20170130851
2017-05-11

Mechanically-activated inflation valve actuation apparatus

#45
20170122448
2017-05-04

Actuated valve system triggered by the failure of a collapsible pin under overpressure condition

#46
20170102080
2017-04-13

Guide element for a valve actuator and actuator provided with said guide element

#47
20170030382
2017-02-02

Combination device for lockout and partial stroke test of valve actuators

#48
20170009883
2017-01-12

Wear resistant insert for pneumatic scotch yoke piston

#49
20160334151
2016-11-17

Rotary four-way reversing valve with low pressure drop and low leakage

#50
20160319950
2016-11-03

Rotary fluid regulator

#51
20160319941
2016-11-03

BALL VALVE ASSEMBLY

#52
20160319849
2016-11-03

Adjustable travel stop for a piston actuator

#53
20160252190
2016-09-01

Valve assembly and method of cooling

#54
20160215889
2016-07-28

Butterfly valve with modified scotch yoke connection

#55
20160208694
2016-07-21

Cooling device for electro-pneumatic controller

#56
20160146098
2016-05-26

Device for actuating the wastegate flap of an exhaust gas turbocharger

#57
20160121356
2016-05-05

Nozzle support device having a rotary nozzle carrying head

#58
20150315975
2015-11-05

Integral filter and regulator for valve

#59
20150060707
2015-03-05

Electro-hydraulic actuator

#60
20150041688
2015-02-12

ELECTRO-HYDRAULIC SYSTEM FOR DRIVING LARGE-SCALE ROTARY MOTION VALVE SUPPLIED BY SOLAR LOW-CAPACITY POWER

#61
20140326129
2014-11-06

Methods and apparatus for adjusting actuator output torques

#62
20140150894
2014-06-05

Flow controlled switching valve

#63
20140090734
2014-04-03

Hydroelectric control valve for remote locations

#64
20140034858
2014-02-06

VALVE ACTUATOR FOR ROTARY VALVE

#65
20140000903
2014-01-02

Ball valve assembly

#66
20130248747
2013-09-26

Butterfly valve with strut

#67
20120211681
2012-08-23

PNEUMATIC ACTUATOR AIR FLOW CONTROL SYSTEM

#68
20120205405
2012-08-16

High pressure fluid spray nozzle incorporating a flow controlled switching valve

#69
20120204368
2012-08-16

Flow controlled switching valve

#70
20120192569
2012-08-02

Pitot tube with increased particle separation for a compressor bleed system of a gas turbine engine

#71
20120096962
2012-04-26

Flat yoke valve actuator

#72
20120048396
2012-03-01

Cutoff valve control apparatus

#73
20110146296
2011-06-23

Method and apparatus for controlling compressor bleed airflow of a gas turbine engine using a butterfly valve assembly

#74
20110127049
2011-06-02

APPORTIONER VALVE ASSEMBLY AND FIRE SUPPRESSION SYSTEM

#75
20110120431
2011-05-26

Exhaust Gas Recirculation Valve Actuator

#76
20110113775
2011-05-19

VALVE ACTUATOR FOR TURBOCHARGER SYSTEMS

#77
20110049400
2011-03-03

Rotary valve actuators having partial stroke damping apparatus

#78
20100319662
2010-12-23

EGR valve device

#79
20100294963
2010-11-25

Pneumatic actuator, in particular for valves

#80
20100288956
2010-11-18

VALVE ACTUATOR

#81
20100109254
2010-05-06

Collets for use with valves

#82
20100108931
2010-05-06

Collets for use with valves

#83
20100108930
2010-05-06

Collets for use with valves

#84
20090107568
2009-04-30

Apparatus operating hydraulic actuator for valve

#85
20090025548
2009-01-29

Spring-return, pneumatic actuator

#86
20080203337
2008-08-28

ACTUATOR ASSEMBLY WITH HERMETIC SEAL AND MAGNETIC ROTATIONAL COUPLER

#87
20080202263
2008-08-28

Flat yoke valve actuator

#88
20080017254
2008-01-24

Variable flow valve

#89
20080006790
2008-01-10

Actuator with spring return piston

#90
20080001108
2008-01-03

Reversed actuator with minimal leak potential

#91
20070234899
2007-10-11

Fluid powered dual-piston actuator with efficient fluid porting and method of implementation

#92
20070215833
2007-09-20

Strap actuated flapper valve

#93
20070193259
2007-08-23

Hydraulic apparatus, system and method for positioning an engine exhaust flow control valve

#94
20070074768
2007-04-05

One-way fluid valve

#95
20060102865
2006-05-18

Actuator for rotor valve

#96
20060065866
2006-03-30

Single-effect submarine actuator for operating valves

#97
20050274416
2005-12-15

Collets for use with process control devices

#98
20050265823
2005-12-01

Pneumatic valve control having improved opening characteristics and an air turbine starter incorporating the same

#99
20050247351
2005-11-10

Emergency isolation valve apparatus

#100
20050127312
2005-06-16

Actuator for driving a valve

#101
20050109968
2005-05-26

Vacuum valve

#102
20050092171
2005-05-05

Balanced fluid-powered modular actuation system

#103
20050022873
2005-02-03

Self-operated protection device for pipeline

#104
18669466
2026-02-10

Variable venturi valve

#105
17322418
2023-06-13

Removably mounted actuator assembly

#106
15986671
2019-10-08

Simplified mechanism for a scotch yoke actuator