Featured patents

Single Effect Hydraulic Cylinder
US 08826799 B2, Sept. 9, 2014, Selectively Usable or Positionable Working Member Controlled Vent in Chamber Wall (402), Marc Anscieau et al. / Airbus Operations S.A.S. (Toulouse, FR)
A single-effect hydraulic cylinder, 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:…

Co-Axial Crankless Engine
US 08863643 B2, Oct. 21, 2014, Cylinders contain plural oppositely movable pistons, Darren Powell
A co-axial crankless engine having:…

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…

Apparatus to Eliminate Back Drive in Push Pull System of Rotor Aircraft and Related Methods
US 08739679 B2, June 3, 2014, With means to vary feedback signal in response to rate of working member movement, M. Keith Robinson et al. / Carter Aviation Technologies, LLC (Wichita Falls, US)
An apparatus for eliminating back drive in a push pull type control system,…

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:…

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…

Active Implement Down Force System With Automatic Latching of Tractor Power Beyond Pressure
US 08573111 B2, Nov. 5, 2013, Between working chamber and inlet and exhaust valve, William Douglas Graham et al. / Deere & Company (Moline, US)
An improvement in an active hydraulic down pressure system for an agricultural…

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,…

Compressed Gas Operated Instrument, in Particular a Surgical Instrument
US 08567302 B2, Oct. 29, 2013, Including motive fluid pressure or flow responsive valve (468), Thomas Scholten et al. / Aesculap AG (Tuttlingen, DE)
A compressed gas operated instrument, comprising:…

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