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Class Information
Number: 137/87.06
Name: Fluid handling > Self-proportioning or correlating systems > Plural sensors > For single valve
Description: Subject matter comprising one valve element and wherein the sensors operate only one valve element to control the flow.

Patents under this class:

Patent Number Title Of Patent Date Issued
8387710 Downhole fluid recirculation valve and method for recirculating fluid in a well Mar. 5, 2013
7192665 Regulator for fuel cell Mar. 20, 2007
6622745 Fluid waster diversion system Sep. 23, 2003
6532980 Pressure source with constant relative increase of pressure and method for diagnosing safety valves for over or under pressure Mar. 18, 2003
6053195 Pressure control valve Apr. 25, 2000
5829470 Differential volume sensing hydraulic control Nov. 3, 1998
4323095 Balanced valve with unidirectional oleo-dynamic unlocking, in particular to allow a number of hydraulic actuators to be series controlled at high pressure Apr. 6, 1982
4291718 Pressure valve Sep. 29, 1981
4222402 Dual overlapping fire protection systems and valve Sep. 16, 1980
3957073 Pressure balancing valve May. 18, 1976

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