ClassID:

249216

Y10T137/7852 - CPC Classification

Classification description:

Fluid handling; Line condition change responsive valves; Direct response valves [i.e., check valve type]; With retarder or dashpot End of valve moves inside dashpot chamber

Sub-classes:
Recent Application in this class:
#1
20260071695
2026-03-12

FLUID DAMPED CHECK VALVE, AND ASSOCIATED SYSTEMS AND METHODS

#2
20230012138
2023-01-12

Self-Contained Hydraulically Controlled Relief Valve

#3
20120285556
2012-11-15

Pressure-limiting valve

#4
20120241031
2012-09-27

Non-return valve and filter arrangement

#5
20120145261
2012-06-14

Pneumatic vibration dampening device

#6
20120138839
2012-06-07

Valve

#7
20100219364
2010-09-02

Minimum pressure valve

#8
20100025601
2010-02-04

Poppet valve with sloped purge holes and method for reducing a pressure force therein

#9
20100024891
2010-02-04

Poppet valve with diverging-converging flow passage and method to reduce total pressure loss

#10
20100006159
2010-01-14

Pressure relief valves

#11
20090136366
2009-05-28

Compressor

#12
20090114289
2009-05-07

Relief valve including a check valve in a damping chamber

#13
20080276997
2008-11-13

Low rise rate direct acting relief valve

#14
20080190486
2008-08-14

Smart reset relief valve

#15
20080029164
2008-02-07

Vacuum relief unit and method for a pool

#16
20080006331
2008-01-10

Differential pressure valve

#17
20070137711
2007-06-21

Valve

#18
20070107784
2007-05-17

Pressure control valve

#19
20070102042
2007-05-10

Chatter resistant shuttle valve

#20
20070017579
2007-01-25

Reset relief valve

#21
20060278279
2006-12-14

Flow regulating device

#22
20060260693
2006-11-23

High impact discharge valve

#23
20060233657
2006-10-19

Scroll machine having a discharge valve assembly

#24
20060157116
2006-07-20

Balanced safety relief valve

#25
20060070665
2006-04-06

Volumetric flow regulation valve

#26
20060054848
2006-03-16

Compressor bypass valve for use in multistage supercharging

#27
20060054133
2006-03-16

Method of effecting multistage super-charging in internal combustion engines

#28
20050211308
2005-09-29

Pressure limiting valve in a hydraulic machine having a pressure limiting valve

#29
20050166970
2005-08-04

Low pressure drop check valve

#30
20050067023
2005-03-31

Fuel return valve

#31
20050028864
2005-02-10

Chatter resistant shuttle valve

#32
20050008521
2005-01-13

Check valve of scroll compressor

#33
18328522
2025-11-18

Fluid damped check valve, and associated systems and methods

#34
17516335
2023-07-18

Fluid damped check valve, and associated systems and methods

#35
16813388
2021-11-16

Fluid damped check valve, and associated systems and mei'hods