Featured patents

Hydraulic Motor Driving Device
US 08776666 B2, July 15, 2014, By varying reaction plate inclination relative to cylinder axes, Satoshi Mori / Kayaba Industry Co., Ltd. (Tokyo, JP)
A hydraulic motor driving device that varies a capacity of a hydraulic motor…

Valve Return Spring With Filter Support for a Pneumatic Brake Booster Assembly
US 08746127 B2, June 10, 2014, One movable part unitary with working member, William P. Grace / Robert Bosch GmbH (Stuttgart, DE)
A brake booster comprising:…

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:…

Fluid Driven Reciprocating Linear Motor
US 08671822 B2, March 18, 2014, Distributor actuator between space piston faces, Adam Depiak et al. / Depiak Industrial Technology Corporation (Calgary, CA)
A motor for providing powered reciprocating linear drive motion using…

Arrangement for Hydraulic Eccentric Adjustment to Set a Predefined Displacement for a Hydrostatic Motor
US 08596186 B2, Dec. 3, 2013, Stroke control, Stephan Schinacher et al. / ZF Friedrichshafen AG (Friedrichshafen, DE)
A radial piston motor (1), in which a predetermined displacement volume can be…

Hydraulic Drive, in Particular for Machine Tools, and Method for Controlling the Hydraulic Drive
US 08549983 B2, Oct. 8, 2013, Contracting chamber exhaust valve controlled by expanding chamber pressure or flow, Bert Brahmer / Voith Patent GmbH (Heidenheim, DE)
A hydraulic drive comprising:…

Directional Control Valve, Particularly for Controlling an Actuating Cylinder of a Turbo-Machine
US 08555772 B2, Oct. 15, 2013, With main valve position feedback to pilot valve, Steffen Lindoerfer et al. / Voith Patent GmbH (Heidenheim, DE)
A directional control valve for controlling working cylinders, servomotors,…

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…

Valve Arrangement Having Individual Pressure Scale and Load-Lowering Valve
US 08516944 B2, Aug. 27, 2013, Both inlet and exhaust controlled by motive fluid pressure in supply line or chamber, Matthieu Desbois-Renaudin / Robert Bosch GmbH (Stuttgart, DE)
A valve arrangement for supplying pressure medium to a hydraulic consumer (2),…

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…

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