Patents-Review.com
ClassID:

152241 ⎘

F16K15/038 - CPC Classification

Classification description:

Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member with a plurality of valve members; Dual valve members with hinges crossing the flow line substantially diametrical having a common hinge

Recent Application in this class:
#1
20260055842
2026-02-26

BREAK CHECK VALVE

 #2
20250065042
2025-02-27

PRESSURE ACTUATED UNI-DIRECTIONAL FLOW CONTROL DEVICE FOR GRAVITY IV SETS

 #3
20240255070
2024-08-01

System, method, and valve assembly for surge protection

 #4
20230356016
2023-11-09

RELEASE VALVE FOR FIRE PROTECTION SYSTEMS, FIRE PROTECTION SYSTEM AND RELATIVE ACTIVATION METHOD

 #5
20230349134
2023-11-02

Automatic shutoff valve for breakaway wet barrel fire hydrant

 #6
20230313896
2023-10-05

Check valve assembly

 #7
20230167913
2023-06-01

Watertight check valve

 #8
20220412499
2022-12-29

Check valve assembly

 #9
20220390037
2022-12-08

Low water hammer break check valve

 #10
20220341501
2022-10-27

Flapper check valve

 #11
20220205547
2022-06-30

Break-away check valve

 #12
20220088300
2022-03-24

Pressure actuated uni-directional flow control device for gravity IV sets

 #13
20220074512
2022-03-10

Watertight check valve

 #14
20210404567
2021-12-30

Break check valve for hydrant

 #15
20210340742
2021-11-04

A BACKFLOW PREVENTER, A HOSE COUPLING OF A HYDRANT AND A HYDRANT

 #16
20210293340
2021-09-23

Watertight check valve

 #17
20200378508
2020-12-03

Break check valve for hydrant

 #18
20200326001
2020-10-15

Break-away check valve

 #19
20200291866
2020-09-17

Gas turbine engine with compressor bleed valve including at least two open positions

 #20
20200166146
2020-05-28

Check valves

 #21
20200132201
2020-04-30

Dual check valve fluid circulation system for dishwasher appliances

 #22
20200080658
2020-03-12

Globe butterfly valve

 #23
20190360604
2019-11-28

Aspirator system pressure relief mechanism

 #24
20190211939
2019-07-11

Check valves

 #25
20190186645
2019-06-20

Check valves

 #26
20190186345
2019-06-20

Integrated passive one way valve in charge air inlet tank

 #27
20190085983
2019-03-21

Additively manufactured valve assembly

 #28
20180355985
2018-12-13

Method for locating check valve pin

 #29
20180306336
2018-10-25

CHECK VALVE

 #30
20180128388
2018-05-10

Check valve

 #31
20180023714
2018-01-25

Check valve

 #32
20170356561
2017-12-14

Check valves

 #33
20170356555
2017-12-14

Check valve

 #34
20170328485
2017-11-16

Check valve for preventing slam and water hammer

 #35
20170307097
2017-10-26

Backflow and breakaway check valve

 #36
20170292621
2017-10-12

Flapper check valve bumper

 #37
20170268696
2017-09-21

Check valves

 #38
20170204984
2017-07-20

Check valves

 #39
20170204981
2017-07-20

Check valves and flapper arrangements therefor

 #40
20170167632
2017-06-15

Check valves

 #41
20170167620
2017-06-15

Check valves

 #42
20160201577
2016-07-14

Gas flow adjusting device

 #43
20160146362
2016-05-26

Check valves

 #44
20160146361
2016-05-26

Check valves

 #45
20160084393
2016-03-24

Anti-flutter check valve

 #46
20160069461
2016-03-10

Valve unit and peristaltic pump including the same

 #47
20160040794
2016-02-11

Check valves

 #48
20160040793
2016-02-11

Check valve with backbone enhanced petals

 #49
20160040792
2016-02-11

Check valve flapper

 #50
20160010757
2016-01-14

Valve flapper spring stop mechanism

 #51
20150330524
2015-11-19

Composite injection molded check valve with integrated features

 #52
20150267824
2015-09-24

Check valve with reduced opening speed

 #53
20150240960
2015-08-27

High opening velocity check valve

 #54
20150068612
2015-03-12

Valve with precision mounted hinge pin posts

 #55
20140366966
2014-12-18

High pressure check valve flange joint

 #56
20140251461
2014-09-11

Check valve having petals with lift generating elements

 #57
20140202562
2014-07-24

Check valve with self-trapping insert

 #58
20140196756
2014-07-17

Adjustable dishwasher conduit valve system

 #59
20140041739
2014-02-13

Dual disk check valve with slotted stop bar

 #60
20130340862
2013-12-26

High opening velocity check valve

 #61
20130019966
2013-01-24

Dual plate check valve

 #62
20120234408
2012-09-20

CHECK VALVE WITH AXIAL THRUST ELEMENT

 #63
20120180880
2012-07-19

DUAL PLATE WAFER CHECK VALVE

 #64
20120125453
2012-05-24

Aircraft fluid check valve assembly with indexing

 #65
20120118419
2012-05-17

Aircraft low clearance fluid check valve

 #66
20120042968
2012-02-23

Metal plate for dual plate check valve

 #67
20100329911
2010-12-30

Check valve and piston pump having check valve

 #68
20100282340
2010-11-11

Compliant check valve stop

 #69
20100236650
2010-09-23

BUTTERFLY VALVE COMBINED WITH CHECK VALVE

 #70
20100119356
2010-05-13

Device for regulating the flow rate of air feeding a turbine ventilation cavity of a turbomachine turbine section

 #71
20100018593
2010-01-28

CHECK VALVE MECHANISM FOR RODENTS AND/OR ODORS

 #72
20090320495
2009-12-31

Fast acting aircraft engine bleed air check valve

 #73
20090235916
2009-09-24

NON-RETURN VALVE FOR AN EXHAUST DUCT OF FLUE GASSES

 #74
20090071549
2009-03-19

Flapper with insert stops for check valve

 #75
20090056818
2009-03-05

CHECK VALVES WITH NOISE REDUCER

 #76
20090032120
2009-02-05

CHECK VALVES WITH HINGE SHAFTS RETAINED BY LOCKING PINS

 #77
20090032119
2009-02-05

Check valves with hinge shafts retained by welding

 #78
20090032118
2009-02-05

CHECK VALVES WITH HINGE SHAFTS RETAINED BY BUSHINGS

 #79
20080128033
2008-06-05

Check valve with adjustable opening pressure

 #80
20080078459
2008-04-03

Rotary hydraulic damper for check valve

 #81
20080078458
2008-04-03

Linear damper for check valve

 #82
20080072974
2008-03-27

Engineered composite quiet check valve

 #83
20080072973
2008-03-27

Rotary pneumatic damper for check valve

 #84
20080053536
2008-03-06

High flow insert type check valve

 #85
20080047610
2008-02-28

Electromagnetic split flapper pressure relief valve

 #86
20080023080
2008-01-31

Check valve stop assembly and method of retention

 #87
20070256740
2007-11-08

Split flapper check valve including a torsion spring wear reduction mechanism

 #88
20070235088
2007-10-11

Reinforced elastomeric hinge check valve

 #89
20070215216
2007-09-20

CHECK VALVE MECHANISM FOR RODENTS AND/OR ODORS

 #90
20060237680
2006-10-26

Butterfly valve with integral split flapper relief valve

 #91
20060179800
2006-08-17

Snap acting split flapper valve

 #92
20060026965
2006-02-09

Methods and apparatus for regulating airflow supply systems

 #93
20050116114
2005-06-02

Normally open reverse flow flapper valve