Featured patents

Boom Cylinder Control Circuit for Construction Machine
US 08807013 B2, Aug. 19, 2014, Independent control of bypass between opposed working chambers, Won Sun Sohn / Doosan Infracore Co., Ltd. (Incheon, KR)
A boom cylinder control circuit for a construction machine that includes a boom…

Reciprocating Compressor
US 08770088 B2, July 8, 2014, By varying reaction plate inclination relative to cylinder axes, Hiroshi Ikeda et al. / Sanden Corporation (Gunma, JP)
A reciprocating compressor comprising:…

Stack Valve Having Bucket Parallel Movement Function
US 08726786 B2, May 20, 2014, For synchronization of motors, Takashi Miki et al. / Nabtesco Corporation (Tokyo, JP)
A stack valve having a bucket parallel movement function, comprising:…

Energy Conversion Devices and Systems Including the Same
US 08689673 B2, April 8, 2014, Timing control by relative adjustment of plural movable fluid control elements, Andrew C. Berkun
An energy conversion device, comprising:…

Hydraulic Pump/Motor and Fan Driving Device
US 08677884 B2, March 25, 2014, With Signal, Indicator or Inspection Means, Mutsumi Ono et al. / Komatsu Ltd. (Tokyo, JP)
A hydraulic pump/motor, comprising:…

Hydraulic Control System
US 08671824 B2, March 18, 2014, Expanding chamber inlet controlled by contracting chamber pressure or flow, Wolfgang Kauss et al. / Robert Bosch GmbH (Stuttgart, DE)
A hydraulic control system for supplying pressure fluid to at least one consumer…

Apparatus to Increase a Force of an Actuator Having an Override Apparatus
US 08549984 B2, Oct. 8, 2013, Electrically operated (275) (361), David Anthony Arnold / Fisher Controls International, LLC (Marshalltown, US)
A fluid control system for use with valves, comprising:…

Hydraulic Valve Arrangement
US 08528460 B2, Sept. 10, 2013, Between working chamber and inlet and exhaust valve, Siegfried Zenker et al. / Sauer-Danfoss Aps (Nordborg, DK)
A hydraulic valve arrangement…

Pneumatic Actuator With a Position Control and Position Adjustment
US 08505436 B2, Aug. 13, 2013, Position Maintaining Type, Ulrich Teschke / Norgren GmbH (Alpen, DE)
A proportional actuator valve (110) adapted for position control and position…

Hydraulic System Including Priority Based Valve Sequencing
US 08474364 B2, July 2, 2013, Pressure responsive valve divides motive fluid between motors, Duqiang Wu et al. / Eaton Corporation (Cleveland, US)
A method comprising:…

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