Patents-Review.com
ClassID:

152249 ⎘

F16K15/066 - CPC Classification

Classification description:

Check valves with guided rigid valve members with guided stems the valve being loaded by a spring with a plurality of valve members

Recent Application in this class:
#1
20260146603
2026-05-28

VALVE ASSEMBLY FOR A FLUID PUMP

 #2
20260063215
2026-03-05

CONNECTING VALVE AND COMBUSTION APPLIANCE

 #3
20260049603
2026-02-19

VALVE CARTRIDGE ASSEMBLY FOR A FLUID PUMP

 #4
20250361943
2025-11-27

Chemical Injection Optimization and Control Valve Device for Dispensing andOptimizing Chemical Injection Processes

 #5
20250361861
2025-11-27

VALVE CARTRIDGE FOR A FLUID PUMP

 #6
20250341260
2025-11-06

MULTI-FUNCTION VALVE ASSEMBLIES

 #7
20250320865
2025-10-16

VALVE CARTRIDGE FOR A FLUID PUMP

 #8
20250250974
2025-08-07

HIGH PRESSURE PUMP

 #9
20250164022
2025-05-22

Chemical Injection Optimization and Control Valve Device for Dispensing and Optimizing Chemical Injection Processes

 #10
20250137240
2025-05-01

SYSTEM FOR MONITORING BACKFLOW PREVENTER CONDITION

 #11
20250075694
2025-03-06

VALVE CARTRIDGE FOR A FLUID PUMP

 #12
20240384806
2024-11-21

PRESSURE RELIEF VALVE ASSEMBLY INCLUDING SERIES COUPLED VALVES AND RELATED METHODS

 #13
20240344506
2024-10-17

High pressure pump

 #14
20240309958
2024-09-19

MULTI-FUNCTION VALVE ASSEMBLIES

 #15
20240093797
2024-03-21

Telescoping spring retention assembly for a check valve

 #16
20240077142
2024-03-07

VALVE APPARATUS

 #17
20240035585
2024-02-01

Modular Valve Assemblies with Optional Swing Out

 #18
20240003446
2024-01-04

Anti-spin outer diameter guided compressor valve

 #19
20230383856
2023-11-30

Backflow prevention assembly having a cartridge with dual zone testing

 #20
20230358328
2023-11-09

PNEUMATIC VALVE SYSTEM AND METHODS OF USING THE SAME

 #21
20230332705
2023-10-19

Pressure relief valve with bi-directional seat

 #22
20230332702
2023-10-19

CHECK COVER ASSEMBLIES FOR BACKFLOW PREVENTION ASSEMBLIES WITH INTEGRATED TEST COCK PROTECTION SHROUD

 #23
20230313890
2023-10-05

FLUID END VALVE

 #24
20230313508
2023-10-05

Compact valve assembly

 #25
20230296185
2023-09-21

Dual poppet pressure relief valve with vacuum adaptor capability

 #26
20230228067
2023-07-20

Backflow prevention assembly having a cartridge with dual zone testing

 #27
20230160382
2023-05-25

Fluid end

 #28
20230140314
2023-05-04

Reversible spring retention assembly for a valve

 #29
20230081883
2023-03-16

Double sealing check valve for rice cooker

 #30
20230058099
2023-02-23

Automatic draining back flow prevention device

 #31
20230055316
2023-02-23

Device for holding a stem of a hydraulic cylinder in position, and method for unblocking and blocking a secondary check valve of the device

 #32
20230050603
2023-02-16

Modular power end

 #33
20230026991
2023-01-26

OIL PRESSURE SUPPLY DEVICE

 #34
20230022890
2023-01-26

Fluid end assembly

 #35
20230012666
2023-01-19

High pressure pump

 #36
20220412476
2022-12-29

Dual poppet pressure relief valve with vacuum adaptor capability

 #37
20220397176
2022-12-15

Adjustable bleed valve assembly for shock absorber

 #38
20220389916
2022-12-08

High pressure pump

 #39
20220364668
2022-11-17

System and method for mitigating water hammer by looping surge pressure

 #40
20220333360
2022-10-20

System for monitoring backflow preventer condition

 #41
20220282725
2022-09-08

High pressure pump

 #42
20220243831
2022-08-04

Pressure relief valve with bi-directional seat

 #43
20220243722
2022-08-04

GAS OPERATED INFINITE STEP VALVE FOR A RECIPROCATING COMPRESSOR

 #44
20220163034
2022-05-26

Modular power end

 #45
20220099081
2022-03-31

Seat valve

 #46
20220049786
2022-02-17

Check cover assemblies for backflow prevention assemblies with integrated test cock protection shroud

 #47
20220049781
2022-02-17

Backflow prevention assembly with telescoping bias assembly and reversible valve member

 #48
20220049686
2022-02-17

Fluid end

 #49
20220049487
2022-02-17

Check valve cartridge with flow guide for compact backflow prevention assembly

 #50
20210372529
2021-12-02

Separate valve seating

 #51
20210332898
2021-10-28

Backflow Prevention Device with Wireless Sensor

 #52
20210332897
2021-10-28

POSITIVE STOP FLOW PIPE ISOLATION INSERT

 #53
20210324962
2021-10-21

One-way valve and air supply system for massage pool

 #54
20210310223
2021-10-07

Automatic draining back flow prevention device

 #55
20210238830
2021-08-05

Backflow preventer and system separator especially for fire-fighting applications

 #56
20210148349
2021-05-20

High pressure pump

 #57
20210148346
2021-05-20

Modular power end

 #58
20210148345
2021-05-20

Fluid routing plug

 #59
20210148208
2021-05-20

Fluid end

 #60
20200408316
2020-12-31

Pressure relief valve with bi-directional seat

 #61
20200355283
2020-11-12

Dual disc non-slam nozzle check valve

 #62
20200271234
2020-08-27

Valve apparatus

 #63
20200224781
2020-07-16

Dual poppet pressure relief valve with vacuum adaptor capability

 #64
20200224602
2020-07-16

Crankcase ventilation system with constant restriction in the flow direction and free flow in an opposite direction

 #65
20200224565
2020-07-16

Crankcase ventilation system with a flow control device for on board diagnostics

 #66
20200063729
2020-02-27

Poppet valve

 #67
20190316333
2019-10-17

Automatic draining back flow prevention device

 #68
20190301624
2019-10-03

Valve with segmented spring guide assembly

 #69
20180340540
2018-11-29

Poppet valve

 #70
20180299019
2018-10-18

Contamination resistant poppet valve

 #71
20180298890
2018-10-18

POPPET VALVE

 #72
20180266576
2018-09-20

Fluid Valve With Hysteresis

 #73
20170175930
2017-06-22

Noise reducing filler valve

 #74
20170081833
2017-03-23

Automatic draining back flow prevention device

 #75
20150240463
2015-08-27

Arrangement for handling a liquid medium

 #76
20150211648
2015-07-30

Pressure limiting valve and alternative method for testing a backflow preventer using the same

 #77
20150203204
2015-07-23

Compact check valve for aircraft galley plumbing system

 #78
20150198257
2015-07-16

Variable suction device for an A/C compressor to improve nvh by varying the suction inlet flow area

 #79
20150184765
2015-07-02

Valve unit with axial pressure medium unit

 #80
20150107706
2015-04-23

VORTEX CHAMBER FOR FLUID CONTROL VALVES

 #81
20150070182
2015-03-12

Medical Gas Manifold

 #82
20140345701
2014-11-27

Electrohydraulic pilot control with two pressure control valves

 #83
20130263931
2013-10-10

Pressure limiting valve and alternative method for testing a backflow preventer using the same

 #84
20120325332
2012-12-27

Automatic draining back flow prevention device

 #85
20120012194
2012-01-19

Double check back flow prevention device

 #86
20110033313
2011-02-10

Air flow control apparatus

 #87
20110005610
2011-01-13

Separator for a release valve

 #88
20100108163
2010-05-06

Caged poppet valve

 #89
20100008805
2010-01-14

Valve assembly and system

 #90
20090288722
2009-11-26

Double check back flow prevention device

 #91
20080223459
2008-09-18

Springless compressor valve

 #92
20070204917
2007-09-06

Backflow prevention device

 #93
20060213556
2006-09-28

Single-piece manifold with reduced pressure arrangement

 #94
20060180208
2006-08-17

Springless compressor valve

 #95
20060157111
2006-07-20

Backflow preventer

 #96
20060137747
2006-06-29

Angled dual check valve

 #97
20060108010
2006-05-25

Simple diverter valve for a roman tub with replaceable cartridge including at least two checks

 #98
20060076062
2006-04-13

Backflow preventer

 #99
20050229975
2005-10-20

Valve arrangement for reciprocating machinery such as a pump and an compressor

 #100
20050199291
2005-09-15

Radial poppet-type check valve with closure assist feature

 #101
20050087234
2005-04-28

Leak-detecting check valve, and leak-detection alarm system that uses said check valve

 #102
15591021
2018-09-18

Linked poppet valves

 #103
15132539
2016-08-30

Modular check valve system

 #104
13463376
2015-11-17

Valve and seat assembly for high pressure pumps and method of use