Y10T137/86968 - CPC Classification Index

ClassID:

249445 ⎘

Y10T137/86968 - CPC Classification

Classification description:

Fluid handling; Systems; Sequentially progressive opening or closing of plural valves; Pressure equalizing or auxiliary shunt flow; One valve seats against other valve [e.g., concentric valves] With balancing chamber

Recent Application in this class:

20170261008

2017-09-14

Speed controller

20170122439

2017-05-04

Valve assembly

20140182724

2014-07-03

Shut-off trim including spring loaded check valve

20140182723

2014-07-03

Shut-off trim including spring loaded check valve

20140174576

2014-06-26

Shut-off trim including spring loaded check valve

20140137969

2014-05-22

Valve assembly

20120138170

2012-06-07

Shut-off trim including spring loaded check valve

20110079394

2011-04-07

Multi-stage pressure equalization valve assembly for subterranean valves

20100078084

2010-04-01

Valve assembly

#10

20060289073

2006-12-28

Infinitely variable directional valve

#11

20050161083

2005-07-28

Valve arrangement for guiding a liquid against a gas pressure gradient