Patents-Review.com
ClassID:

152575 ⎘

F16K39/024 - CPC Classification

Classification description:

Devices for relieving the pressure on the sealing faces for lift valves using an auxiliary valve on the main valve

Recent Application in this class:
#1
20250155044
2025-05-15

METHOD FOR OPERATING A FLUID SYSTEM AND FLUID SYSTEM

 #2
20250060045
2025-02-20

VALVE

 #3
20240410470
2024-12-12

Valve Head Structure and Flow Regulating Valve with Valve Head Structure

 #4
20240344631
2024-10-17

Measurement method for steam valve and measurement device for steam valve

 #5
20240337331
2024-10-10

VALVE TRIM APPARATUS FOR USE WITH FLUID VALVES

 #6
20240328538
2024-10-03

STEAM VALVE AND POWER GENERATION SYSTEM

 #7
20240142021
2024-05-02

ACTIVE BALANCING VALVE FOR A REFRIGERATION AND/OR AIR-CONDITIONING APPLICATION

 #8
20240060575
2024-02-22

FLOW REGULATOR

 #9
20230010189
2023-01-12

Valve for preventing backflow and valve module

 #10
20220384828
2022-12-01

FUEL CELL SYSTEM HAVING A VALVE IN A VALVE HOUSING AND A METHOD FOR CONTROLLING A FLOW OF A FLUID

 #11
20220290770
2022-09-15

Combination valve

 #12
20220178470
2022-06-09

Valve

 #13
20220049790
2022-02-17

Valve device for a gaseous medium, and tank device for storing a gaseous medium

 #14
20220034425
2022-02-03

Equalizing cartridge for a flapper valve

 #15
20210396327
2021-12-23

Valve device

 #16
20210348582
2021-11-11

Valve for controlling a pressure differential

 #17
20210301934
2021-09-30

Combination valve

 #18
20210262575
2021-08-26

Flow control switch valve

 #19
20210164583
2021-06-03

FLOW CONTROL VALVE

 #20
20210140552
2021-05-13

Variable flow poppet valve

 #21
20200378527
2020-12-03

Valve

 #22
20200347957
2020-11-05

Expandable pilot assembly for pressure regulators

 #23
20200290454
2020-09-17

Fuel tank safety valve

 #24
20200182079
2020-06-11

Bypass valve assembly for turbine generators

 #25
20200096129
2020-03-26

Concentrically annular valve piston and seat

 #26
20200096115
2020-03-26

Valve

 #27
20200011452
2020-01-09

Electrically-driven flow rate control valve

 #28
20200003312
2020-01-02

Flow control switch valve

 #29
20190331248
2019-10-31

Valve

 #30
20190316691
2019-10-17

BYPASS VALVE, EXPANDER UNIT HAVING A BYPASS VALVE, AND WASTE-HEAT RECOVERY SYSTEM HAVING AN EXPANDER UNIT

 #31
20190316687
2019-10-17

Valve

 #32
20190271409
2019-09-05

Valve body having primary and secondary stem guides

 #33
20190178409
2019-06-13

Solenoid valve, and method for producing a solenoid valve

 #34
20190154167
2019-05-23

Solenoid valve for controlling fluid

 #35
20190077648
2019-03-14

Side shutoff piston valve assembly

 #36
20190017613
2019-01-17

Check valve having reverse-direction fluid supply function

 #37
20180259084
2018-09-13

Strainer assembly for internal valve

 #38
20180259083
2018-09-13

Valve body having primary and secondary stem guides

 #39
20180259079
2018-09-13

Spring seat for an internal valve

 #40
20180259078
2018-09-13

Spring seat for an internal valve

 #41
20180105034
2018-04-19

Fuel tank safety valve

 #42
20180010696
2018-01-11

Cascaded controllable fluid control valve and valve trim for a fluid control valve

 #43
20170284553
2017-10-05

Relief valve device

 #44
20170167633
2017-06-15

Solenoid valve

 #45
20170159838
2017-06-08

Multi-stage poppet valve

 #46
20170138494
2017-05-18

Check valve

 #47
20170122439
2017-05-04

Valve assembly

 #48
20170107844
2017-04-20

Bypass valve assembly for turbine generators

 #49
20160368609
2016-12-22

Dual valve gas pressure equalization system and method

 #50
20160356397
2016-12-08

Pressure balancing globe valve

 #51
20160356385
2016-12-08

Non-rising stem globe valve

 #52
20160245427
2016-08-25

Two-stage solenoid valve

 #53
20160208954
2016-07-21

VALVE DEVICE

 #54
20160161018
2016-06-09

PILOT-OPERATED VALVE

 #55
20160104903
2016-04-14

Valve device

 #56
20160097444
2016-04-07

Cam apparatus for use with valves

 #57
20160053904
2016-02-25

Tilting disc check valve

 #58
20160053903
2016-02-25

Timing valve and kick-down valve

 #59
20150330529
2015-11-19

Electromagnetically operable high-pressure gas valve

 #60
20150267837
2015-09-24

Aerospace electrovalve for high-pressure cryogenic gas

 #61
20150260301
2015-09-17

Service valve for a valve body

 #62
20150260299
2015-09-17

Testing cap for a valve body

 #63
20150226348
2015-08-13

Electro-magnetic valve

 #64
20150204215
2015-07-23

Steam turbomachine valve having a valve member and seal assembly

 #65
20150122360
2015-05-07

Electronic expansion valve

 #66
20150083954
2015-03-26

Pressure equalizing valve

 #67
20150076382
2015-03-19

Butterfly valve arrangement

 #68
20150027549
2015-01-29

Dual stage poppet

 #69
20140261817
2014-09-18

Valve assembly including pressure relief mechanism

 #70
20140261808
2014-09-18

Universal valve body

 #71
20140182724
2014-07-03

Shut-off trim including spring loaded check valve

 #72
20140182723
2014-07-03

Shut-off trim including spring loaded check valve

 #73
20140174576
2014-06-26

Shut-off trim including spring loaded check valve

 #74
20140137969
2014-05-22

Valve assembly

 #75
20140137957
2014-05-22

Pressure balanced spring loaded overtravel sealing apparatus

 #76
20140137947
2014-05-22

Apparatus and method for reducing actuator thrust requirements in a control valve

 #77
20140130876
2014-05-15

Method of two-stage flow control

 #78
20140008556
2014-01-09

Valve device

 #79
20130319558
2013-12-05

Discharge and purging device, a connecting endpiece and connector comprising such a device

 #80
20130277587
2013-10-24

Electromagnetic valve for a tank valve of a fuel supply system

 #81
20130160726
2013-06-27

Valve assembly and method for high temperature engines

 #82
20130112290
2013-05-09

Ventilation arrangement for a fuel tank

 #83
20130082199
2013-04-04

Control valve

 #84
20130056666
2013-03-07

Valves having removable internal actuation mechanisms

 #85
20130037146
2013-02-14

FLUID VALVES HAVING MULTIPLE FLUID FLOW CONTROL MEMBERS

 #86
20120248365
2012-10-04

Opening and closing valve for high-pressure gas

 #87
20120199775
2012-08-09

Electromagnetic valve

 #88
20120153202
2012-06-21

Field removable bonnet assemblies for use with valves

 #89
20120153194
2012-06-21

VALVE

 #90
20120153193
2012-06-21

Two-stage, slow-start valve apparatus

 #91
20120138170
2012-06-07

Shut-off trim including spring loaded check valve

 #92
20110283817
2011-11-24

Methods and apparatus for removing fluid from fluid valves

 #93
20110209784
2011-09-01

Valve assemblies

 #94
20110209783
2011-09-01

Valve assemblies

 #95
20110203685
2011-08-25

APPARATUS TO DETERMINE A POSITION OF A VALVE

 #96
20110180165
2011-07-28

Non-magnetic latching servo actuated valve

 #97
20110068286
2011-03-24

SOLENOID ON-OFF VALVE

 #98
20100307613
2010-12-09

DEVICE FOR BLOCKING AND RELEASING A FLUID FLOW AND ASSOCIATED METHOD

 #99
20100301252
2010-12-02

Universal Valve System

 #100
20100252770
2010-10-07

Redundant metal-to-metal seals for use with internal valves

 #101
20100206388
2010-08-19

Relief valve for a turbocharger

 #102
20100148108
2010-06-17

Fluid control valve

 #103
20100084596
2010-04-08

Field removable bonnet assemblies for use with valves

 #104
20100084594
2010-04-08

Valves having removable internal actuation mechanisms

 #105
20100084587
2010-04-08

Fluid-working machine

 #106
20100078084
2010-04-01

Valve assembly

 #107
20100051120
2010-03-04

Fluid flow control members for use with valves

 #108
20090283154
2009-11-19

Fluid supply valve attachment device

 #109
20090139588
2009-06-04

Two-stage valve for controlling fluids

 #110
20090020291
2009-01-22

Flapper mounted equalizer valve for subsurface safety valves

 #111
20080308161
2008-12-18

Flow controlled actuator apparatus for use with self-closing stop valves

 #112
20070090317
2007-04-26

Solenoid valve device installed in gas tank

 #113
20070034268
2007-02-15

Air valve for spray guns

 #114
20070007475
2007-01-11

Vacuum valve

 #115
20060151177
2006-07-13

Equalizing flapper for high slam rate applications

 #116
20060006356
2006-01-12

Non-magnetic latching servo actuated valve

 #117
20060005890
2006-01-12

Flow control valve for refrigeration system

 #118
20050155656
2005-07-21

Fluid control