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Class Information
Number: 137/596.15
Name: Fluid handling > Systems > Supply and exhaust > Pilot-actuated > Common to plural valve motor chambers
Description: Device in which a single pilot valve controls a plurality of valve actuating motor chambers.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8662106 Hydraulic trip unit for a valve unit in a prime mover plant, especially for a fast-acting shut-off valve of a turbine plant Mar. 4, 2014
8640723 First-stage pilot valve Feb. 4, 2014
8464753 Valve arrangement Jun. 18, 2013
8291934 Proportional valve assembly Oct. 23, 2012
7891375 Softstart valve means Feb. 22, 2011
7779863 Pressure control valve having an asymmetric valving structure Aug. 24, 2010
7735516 Lift axle control module Jun. 15, 2010
7735518 Valve assembly with dual actuation solenoids Jun. 15, 2010
7484527 Switch valve device Feb. 3, 2009
7293580 Valve Nov. 13, 2007
7117889 Three-way valve Oct. 10, 2006
7003949 Integrated three function valve Feb. 28, 2006
6712091 Control device for a hydraulic control motor Mar. 30, 2004
6684905 Construction machine Feb. 3, 2004
6679162 Working cylinder, switch valve and pressure-actuated working unit Jan. 20, 2004
6554026 Device for controlling flowing media Apr. 29, 2003
6467496 Single-adjustment, dual-null pressure setting for an electrohydraulic valve pilot stage Oct. 22, 2002
6443175 Vacuum pressure generator circuit with non-volitile memory function Sep. 3, 2002
6408876 Control valve Jun. 25, 2002
6286547 Module for driving actuators Sep. 11, 2001
6223773 Check valve assembly May. 1, 2001
6209580 Multifunction valve assembly Apr. 3, 2001
6196247 Valve assembly and method for actuation of such a valve assembly Mar. 6, 2001
6186172 Directional control valve apparatus Feb. 13, 2001
6179000 Three-way valve Jan. 30, 2001
6164327 Meter-out flow control valve Dec. 26, 2000
6152163 Switching valve for multi-chamber adsorbent air and gas fractionation system Nov. 28, 2000
6145541 Four-way selector valve Nov. 14, 2000
5979498 Three-way or multi-way valve Nov. 9, 1999
5975134 Valve system Nov. 2, 1999
5588463 Module for controlling pressure in a hydraulic circuit Dec. 31, 1996
5551478 Multiplexing hydraulic control network with latching valves Sep. 3, 1996
5546988 Servo multiplexing system Aug. 20, 1996
5522301 Pressure control valve for a hydraulic actuator Jun. 4, 1996
5443087 Method and system for controlling a pressurized fluid and valve assembly for use therein Aug. 22, 1995
5372060 Hydraulic valve assembly Dec. 13, 1994
5361679 Directional control valve with pilot operated poppet valves Nov. 8, 1994
5331883 Hydraulic valve means Jul. 26, 1994
5280807 Supply circuit for a two-tube hydraulic system Jan. 25, 1994
5272959 Power transmission Dec. 28, 1993
5263513 Dual flow passage poppet valve Nov. 23, 1993
5240024 Automated process gas supply system for evacuating a process line Aug. 31, 1993
5235811 Control change system for a hydraulic work vehicle Aug. 17, 1993
5222715 Valve construction Jun. 29, 1993
5218997 Digital hydraulic valve control Jun. 15, 1993
5186213 29 Feb. 16, 1993
5136930 Apparatus for supplying pressure oil to hydraulic cylinders employed in working machines Aug. 11, 1992
5125232 Control change system for a hydraulic working vehicle Jun. 30, 1992
5103866 Poppet valve and valve assemblies utilizing same Apr. 14, 1992
5088383 Multiplexed hydraulic control system with multiplexing valve having planar port array Feb. 18, 1992

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