Featured patents

Wobble Plate Type Variable Displacement Compressor
US 08757045 B2, June 24, 2014, By varying reaction plate inclination relative to cylinder axes, Satoshi Terauchi / Sanden Corporation (Gunma, JP)
A wobble plate type variable displacement compressor having pistons inserted…

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:…

Valve Apparatus
US 08739681 B2, June 3, 2014, Relatively movable unitary inlet and exhaust valves for opposed working chambers, Axel Grigoleit et al. / Hydac Fluidtechnik GmbH (Sulzbach/Saar, DE)
A valve apparatus for setting and monitoring a clamping pressure of a clamping…

Hydraulic Pressure Feedback for Servovalves
US 08739680 B2, June 3, 2014, Both inlet and exhaust controlled by motive fluid pressure in supply line or chamber, Dennis Reust
A spool for a servovalve comprising:…

Hydraulic Cylinder With Piston Valve Assembly
US 08683910 B1, April 1, 2014, Distributor operated by abutment with cylinder head, Tim Foster / Foster Hydraulics, Inc. (Louisville, US)
A hydraulic cylinder:…

Linear Actuator
US 08683911 B2, April 1, 2014, Plural Relatively Movable or Rigidly Interconnected Working Members, Koichiro Ishibashi et al. / SMC Kabushiki Kaisha (Tokyo, JP)
A linear actuator in which, by introduction of a pressure fluid from fluid…

Apparatus, a Control Circuit and a Method for Producing Pressure and Volume Flow
US 08635939 B2, Jan. 28, 2014, Three or more cylinders arranged in parallel, radial or conical relationship with rotary transmission axis, Matti Vilenius et al. / Robert Bosch GmbH (Stuttgart, DE)
An apparatus comprising:…

Hydraulic Cylinder Cushion Device With Check Ring
US 08640600 B2, Feb. 4, 2014, Part movable with respect to working member, Yun Hyun Chung / Volvo Construction Equipment Holding Sweden AB (Eskilstuna, SE)
A hydraulic cylinder cushion device installed in a hydraulic cylinder,…

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 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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