Featured patents

Hydraulic Load Control Valve Device
US 08800426 B2, Aug. 12, 2014, Contracting chamber exhaust valve controlled by expanding chamber pressure or flow, Bo Andersson / Nordhydraulic AB (Kramfors, SE)
A hydraulic load control valve device, comprising:…

Double Valve Constructed From Unitary Single Valves
US 08794123 B2, Aug. 5, 2014, Two hand control, Eric Oden Cummings et al. / Ross Operating Valve Company (Troy, US)
A double valve comprising:…

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:…

Hood-Lifting Actuator With Disarmable Return Braking Arrangement
US 08739678 B2, June 3, 2014, Reversal responsive to motive fluid pressure change, Evrard Borg et al. / Herakles (Le Haillan, FR)
A triggered stroke actuator of the type comprising a cylinder housing a movable…

Floating Piston Actuator for Operation With Multiple Hydraulic Systems
US 08677885 B2, March 25, 2014, Stand-by means utilizes an auxiliary motive fluid source for another working member to drive same load, Rhett Henrickson et al. / Woodward HRT, Inc. (Santa Clarita, US)
A hydraulic actuator, comprising:…

Output System for a Plurality of Masses
US 08640601 B2, Feb. 4, 2014, Plural Relatively Movable or Rigidly Interconnected Working Members, Christoph Schmid / Henkel AG & Co. KGaA (Duesseldorf, DE)
An output system for the extraction and/or output of plural masses, comprising…

Lock Valve With Grooved Porting in Bore
US 08578838 B2, Nov. 12, 2013, Contracting chamber exhaust valve controlled by expanding chamber pressure or flow, Noam Davidson / Marine Canada Acquisition Inc. (Richmond, CA)
A lock valve for a hydraulic steering system comprising:…

Cushioning System for Pneumatic Cylinder of Differential Engine
US 08528459 B2, Sept. 10, 2013, Part movable with respect to working member, Gennady Plavnik / Wabtec Holding Corp. (Wilmerding, US)
A cushioning system for use with a pneumatic cylinder/differential engine door…

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 Cylinder
US 08495947 B2, July 30, 2013, Self-acting valve (432) (446) (451) (452), Hideki Hata / Hitachi Automotive Systems, Ltd. (Ibaraki, JP)
A hydraulic cylinder comprising:…

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