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Class Information
Number: 137/596.16
Name: Fluid handling > Systems > Supply and exhaust > Pilot-actuated > Electric
Description: Device in which the pilot valve is operated by electric motive means.










Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8701706 Valve arrangement Apr. 22, 2014
8689822 Pressure regulation in remote zones Apr. 8, 2014
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
8602055 Hydraulic valve device Dec. 10, 2013
8593811 Method and structure for optimizing heat exchanger performance Nov. 26, 2013
8479769 Hydraulic valve device Jul. 9, 2013
8464753 Valve arrangement Jun. 18, 2013
8375992 Adjustable pressure control valves Feb. 19, 2013
8347918 Solenoid valve apparatus Jan. 8, 2013
8333218 Proportional pressure controller Dec. 18, 2012
8028717 High throughput double valve with reduced outlet pressure during a faulted state Oct. 4, 2011
7958907 Fluid pressure circuit Jun. 14, 2011
7926411 Valve control unit Apr. 19, 2011
7891375 Softstart valve means Feb. 22, 2011
7828008 Online partial stroke testing system using a modified 2004 architecture Nov. 9, 2010
7823604 Exhaust apparatus pressure control system Nov. 2, 2010
7823602 Hydraulic system having at least one hydraulic valve for actuating a component Nov. 2, 2010
7677264 Manifold-type solenoid valve with external port Mar. 16, 2010
7673652 Hydraulic pressure control device for automatic transmission Mar. 9, 2010
7607454 Vacuum and vacuum-breaking composite valve Oct. 27, 2009
7543603 Three-way, two-position in-tube solenoid gas valve assembly Jun. 9, 2009
7490625 Pilot valve manifold Feb. 17, 2009
7438086 Dynamic fluid power monitoring system for separate actuators Oct. 21, 2008
7399347 Control valve structure for an oxygen machine Jul. 15, 2008
7392971 Infinitely variable directional valve Jul. 1, 2008
7328720 Solenoid valve Feb. 12, 2008
7293580 Valve Nov. 13, 2007
7270046 Integrated valve assembly and computer controller for a distributed hydraulic control system Sep. 18, 2007
7213612 High pressure ball-poppet control valve with flow control May. 8, 2007
7210502 Microvalve device suitable for controlling a variable displacement compressor May. 1, 2007
7185673 Safety device for fluid operated machines Mar. 6, 2007
7150292 Electropneumatic double control valve comprising a sealing arrangement Dec. 19, 2006
7147006 Pilot operated valve Dec. 12, 2006
7114521 Double valve constructed from unitary single valves Oct. 3, 2006
7100639 Control valve Sep. 5, 2006
7044431 Electromagnetically actuated valve system and valve device May. 16, 2006
7040716 Anti-lock brake system for vehicles May. 9, 2006
7025090 Fluid flow control valves Apr. 11, 2006
7003949 Integrated three function valve Feb. 28, 2006
6990999 Digitally controlled modular valve system Jan. 31, 2006
6983623 Valve block assembly for I.S. glassware machine and modular pilot valve operated poppet valve assembly Jan. 10, 2006
6976500 Valve combination for a fluid circuit with two pressure levels, particularly a combined cooling system/heat pump circuit Dec. 20, 2005
6910493 Control apparatus, method and diagnostic for hydraulic fill and drain Jun. 28, 2005
6865065 Semiconductor processing chamber substrate holder method and structure Mar. 8, 2005
6860292 Control system for air-operated devices Mar. 1, 2005
6845962 Thermally actuated microvalve device Jan. 25, 2005
6840259 Dynamically-monitored double valve with retained memory of valve states Jan. 11, 2005
6840258 Dynamically-monitored double valve with anti-tiedown feature Jan. 11, 2005
6837269 Electrohydraulic control device Jan. 4, 2005

1 2 3 4 5 6










 
 
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