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Class Information
Number: 137/505.26
Name: Fluid handling > Line condition change responsive valves > With separate connected fluid reactor surface > With opening bias (e.g., pressure regulator) > Reactor surface separated by apertured partition
Description: Devices in which the reactor surface is in a chamber distinct from the outlet chamber and in direct fluid communication therewith by means of an aperture through a partition or wall between the chambers.










Sub-classes under this class:

Class Number Class Name Patents
137/505.27 In valve stem 4
137/505.36 Reactor surface is diaphragm 23
137/505.29 Valve stem passes through the aperture 13


Patents under this class:

Patent Number Title Of Patent Date Issued
8181668 Pressure reducing valve for gas May. 22, 2012
7757703 Device for regulating pressure Jul. 20, 2010
7520297 Pressure regulator device and system Apr. 21, 2009
7320333 Compact field adjustable pressure reducing valve Jan. 22, 2008
7077158 Velocity head compensated valve assembly Jul. 18, 2006
6986338 Fluid flow pressure regulator Jan. 17, 2006
6832625 Electrically operable valve assembly having an integral pressure regulator Dec. 21, 2004
6789559 Pressure regulator Sep. 14, 2004
6668855 Direct-acting pressure regulator Dec. 30, 2003
6637451 Pneumatic pressure regulator assembly Oct. 28, 2003
6488046 Pressure reducer for compressed gases Dec. 3, 2002
6283146 Pressure reducing valve with pressure gage in handle Sep. 4, 2001
6131595 Automatic back water valve system Oct. 17, 2000
6131825 Spray paint gun air stabilizing structure Oct. 17, 2000
5875813 Automatic back water valve system Mar. 2, 1999
5706848 Heat exchanger pressure shutoff valve Jan. 13, 1998
5538032 Automatic back water valve system Jul. 23, 1996
5503182 Air pressure adjusting module balancing value and its chamber structure Apr. 2, 1996
5452741 Pressure reducing valve Sep. 26, 1995
5443186 Fluid dispenser which has a button actuated regulator valve and a pressure relief port in the button Aug. 22, 1995
5339860 Fluid pressure regulator Aug. 23, 1994
4905723 High pressure regulator Mar. 6, 1990
4836089 Series spool pressure regulator arrangement for a double-acting hydraulic actuator Jun. 6, 1989
4489751 Pressure reducing regulator for oxygen service Dec. 25, 1984
4445532 Pressure regulator system May. 1, 1984
4387673 Valve opening control device Jun. 14, 1983
4243069 Fluid flow regulator Jan. 6, 1981
4149559 Pressure regulator Apr. 17, 1979
4089343 Automatic flow control valve assembly May. 16, 1978











 
 
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