Y10T137/7897 - CPC Classification Index

ClassID:

249260 ⎘

Y10T137/7897 - CPC Classification

Classification description:

Fluid handling; Line condition change responsive valves; Direct response valves [i.e., check valve type] Vacuum relief type

Recent Application in this class:

20220339075

2022-10-27

VENT VALVE ASSEMBLIES FOR BABY BOTTLES

20200325662

2020-10-15

Mixing hydrant

20200011439

2020-01-09

Air admittance valve preventing mephitis overflow

20190201294

2019-07-04

Vent valve assemblies for baby bottles

20180038496

2018-02-08

Air admittance valve preventing mephitis overflow

20170218610

2017-08-03

Air admittance valve

20160138727

2016-05-19

Discharge vacuum relief valve for safety vacuum release system

20160129291

2016-05-12

Gas purging valve for fire protection system

20160108608

2016-04-21

Plumbing drain assembly

#10

20150316007

2015-11-05

Tank pressure control solenoid with passive tank vacuum

#11

20150308090

2015-10-29

Air admittance valve

#12

20140246103

2014-09-04

Gas purging valve for fire protection system

#13

20140027403

2014-01-30

Vent valve assemblies for baby bottles

#14

20130284288

2013-10-31

Adjustment plate and apparatus for treating substrate having the same

#15

20120261030

2012-10-18

Relief valve

#16

20120261006

2012-10-18

Air admittance vent

#17

20120248348

2012-10-04

Dual-direction in-tank magnetic safety valve

#18

20120180503

2012-07-19

CRYOPUMP AND VACUUM VALVE DEVICE

#19

20120145251

2012-06-14

Discharge vacuum relief valve for safety vacuum release system

#20

20120118430

2012-05-17

Relief Valve

#21

20120103447

2012-05-03

Relief valve for oil pump

#22

20120103442

2012-05-03

Relief valve for oil pump

#23

20120077602

2012-03-29

Axially adjustable driveshaft assembly

#24

20120042967

2012-02-23

Vacuum-actuated shear valve device, system, and method, particularly for use in service station environments

#25

20110308632

2011-12-22

Closing and sealing means for air admittance valves in sanitary waste water pipe systems

#26

20110186151

2011-08-04

CHECK VALVE

#27

20110180163

2011-07-28

Vacuum relief valve

#28

20110168714

2011-07-14

Vent valve assemblies for baby bottles

#29

20110073199

2011-03-31

Vacuum relief valve and method for assembling the same

#30

20110000557

2011-01-06

Check vacuum breaking device for a tap

#31

20100263882

2010-10-21

SYSTEM AND METHOD FOR FIRE PROTECTION SYSTEM CORROSION MITIGATION

#32

20100180962

2010-07-22

VACUUM RELIEF ASSEMBLY WITH CONTAMINANT SCREEN

#33

20100139788

2010-06-10

Metallic Air Admittance Valve

#34

20100096035

2010-04-22

Negative pressure relief valve assembly

#35

20100032028

2010-02-11

Air admittance valve

#36

20090320936

2009-12-31

Dual action low head isolation valve

#37

20090314009

2009-12-24

Vacuum actuated valve for high capacity storage and delivery systems

#38

20090293713

2009-12-03

Vacuum brake booster housing and non-rotatable connecting element

#39

20090272444

2009-11-05

Vacuum regulator having selectable adjustment ranges

#40

20090151799

2009-06-18

CHECK VALVE

#41

20090071551

2009-03-19

Living-hinge air vent valve

#42

20090029783

2009-01-29

Method of installing axially adjustable driveshaft assembly

#43

20080314460

2008-12-25

Air admittance vent diaphragm assembly

#44

20080173612

2008-07-24

Vent valve assemblies for baby bottles

#45

20080029164

2008-02-07

Vacuum relief unit and method for a pool

#46

20070283671

2007-12-13

Pressure release protection device for automatic ground cleaning vehicles

#47

20070131283

2007-06-14

Sanitary tank vent valve

#48

20060277976

2006-12-14

Redundant vacuum source for secondary containment monitoring and leak detection system and method

#49

20060260703

2006-11-23

Check valve

#50

20060260680

2006-11-23

Vacuum-actuated shear valve device, system, and method, particularly for use in service station environments

#51

20060260387

2006-11-23

End-of-line zone integrity detection for a piping network in a secondary containment monitoring and leak detection system

#52

20060201556

2006-09-14

Swimming pool vacuum relief safety valve

#53

20060201555

2006-09-14

Swimming pool vacuum relief safety valve

#54

20060191576

2006-08-31

Air admittance vent

#55

20060157118

2006-07-20

Air admittance vent diaphragm assembly

#56

20060157117

2006-07-20

Fuel tank venting system

#57

20060065308

2006-03-30

Pressure relief door for air duct work

#58

20060011239

2006-01-19

Air admittance valve assembly

#59

20050145281

2005-07-07

Dual ball valve air vent valve

#60

20050092371

2005-05-05

Vacuum relief assembly for I.C. engine intakes

#61

14510022

2016-09-13

Vacuum relief valve