Patents-Review.com
ClassID:

248734 ⎘

Y10T137/3331 - CPC Classification

Classification description:

Fluid handling; Back flow prevention by vacuum breaking [e.g., anti-siphon devices]; Air vent in liquid flow line; Valved With co-acting valve in liquid flow path

Recent Application in this class:
#1
20240353045
2024-10-24

Vacuum breaker valve

 #2
20230058099
2023-02-23

Automatic draining back flow prevention device

 #3
20210310223
2021-10-07

Automatic draining back flow prevention device

 #4
20210270377
2021-09-02

Backflow prevention device with reduced pressure zone

 #5
20190316333
2019-10-17

Automatic draining back flow prevention device

 #6
20190170259
2019-06-06

Concealed three port flushometer system

 #7
20180306328
2018-10-25

Concealed three port flushometer system

 #8
20170081833
2017-03-23

Automatic draining back flow prevention device

 #9
20160161011
2016-06-09

Valve assemblies with internal protective elements and methods of using same

 #10
20160002898
2016-01-07

Automatic draining back flow prevention device

 #11
20150240463
2015-08-27

Arrangement for handling a liquid medium

 #12
20140202563
2014-07-24

Automatic draining back flow prevention device

 #13
20140166115
2014-06-19

Water hammer recognizing and energy saving water hammer prevention system and method for controlling the same

 #14
20140048160
2014-02-20

Rinse valve for vacuum waste system

 #15
20130312845
2013-11-28

Anti-freeze vacuum breaking structure for a faucet

 #16
20120325332
2012-12-27

Automatic draining back flow prevention device

 #17
20120145745
2012-06-14

Reusable pour-on gun system

 #18
20120012194
2012-01-19

Double check back flow prevention device

 #19
20120012193
2012-01-19

Apparatus for preventing backflow of fill valve in water toilet

 #20
20120006422
2012-01-12

Anti-backflow vacuum breaker valve

 #21
20110297244
2011-12-08

Universal hole cutter

 #22
20110232774
2011-09-29

Mixing eductor

 #23
20110005610
2011-01-13

Separator for a release valve

 #24
20100288373
2010-11-18

Duckbill type check valve with curved and resiliently biased closing seal

 #25
20100084592
2010-04-08

Rinse valve for vacuum waste system

 #26
20100043890
2010-02-25

Anti-siphon device for a flush valve

 #27
20100032027
2010-02-11

Backflow preventer

 #28
20090314369
2009-12-24

Internal leak detection and backflow prevention in a flow control arrangement

 #29
20090314362
2009-12-24

Switching valve with slider

 #30
20090288722
2009-11-26

Double check back flow prevention device

 #31
20090095357
2009-04-16

Backwater valve assembly with removable valve member

 #32
20090020163
2009-01-22

Siphon breaker

 #33
20080276994
2008-11-13

Airing and venting elements for pipes and fittings

 #34
20080245418
2008-10-09

Freezeless hydrant

 #35
20080223448
2008-09-18

Mixing eductor

 #36
20080178941
2008-07-31

System disconnector

 #37
20080169029
2008-07-17

Non-removable refill restrictor apparatus

 #38
20080072965
2008-03-27

Valve device for sanitary fitting and sanitary fitting

 #39
20080047612
2008-02-28

AUTOMATIC DRAINING DOUBLE CHECK VACUUM BREAKER

 #40
20070295404
2007-12-27

Siphon and backflow resistant valve

 #41
20070278440
2007-12-06

Faucet type valve with backflow control in handle structure

 #42
20070240765
2007-10-18

Backflow Preventer

 #43
20070240764
2007-10-18

Freeze safe valve

 #44
20070193627
2007-08-23

Backpressure relief valve

 #45
20070193626
2007-08-23

Cartridge assembly retainer

 #46
20070079873
2007-04-12

Pipe disconnector with increased sealing power

 #47
20070028980
2007-02-08

Mixing eductor

 #48
20070000543
2007-01-04

Pipe disconnector

 #49
20060278271
2006-12-14

Vacuum breaker

 #50
20060272706
2006-12-07

Vacuum eliminator

 #51
20060213556
2006-09-28

Single-piece manifold with reduced pressure arrangement

 #52
20060196561
2006-09-07

Wall hydrant having backflow preventor

 #53
20060196543
2006-09-07

Additive delivery device and methodology for irrigation systems

 #54
20060196542
2006-09-07

Vacuum breaker

 #55
20060157111
2006-07-20

Backflow preventer

 #56
20060157110
2006-07-20

Vacuum breaker for hose connection

 #57
20060060243
2006-03-23

Self-draining vacuum breaker

 #58
20060060242
2006-03-23

Mains pressure flusher valve

 #59
20050211299
2005-09-29

Back flow preventer made of at least two different types of material

 #60
20050178434
2005-08-18

Self-draining vacuum breaker

 #61
20050092361
2005-05-05

Line pressure diverter apparatus

 #62
17184680
2022-01-25

Integrated one way valve

 #63
15680335
2018-07-17

Incontinence device with atmospheric equilibrium valve assembly

 #64
15357997
2018-02-20

Anti-siphon valve with freeze protection

 #65
15097901
2017-08-01

Vacuum breaker valve

 #66
15081975
2017-08-01

Full-drain type vacuum breaker

 #67
14507716
2016-11-29

Anti-siphon valve with freeze protection