Featured patents

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

Actuating Drive for Positioning a Final Control Element and Method for Capturing a Position of the Final Control Element
US 08869675 B2, Oct. 28, 2014, With Signal, Indicator or Inspection Means, Joerg Kiesbauer et al. / Samson Aktiengesellschaft (Frankfurt, DE)
An actuating drive for positioning a final control element, 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…

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:…

Pneumatic Booster
US 08631735 B2, Jan. 21, 2014, One movable part unitary with working member, Keiichi Saiwaki et al. / Hitachi Automotive Systems, Ltd. (Kanagawa, JP)
A pneumatic booster, comprising:…

Valvetrain Oil Control System and Oil Control Valve
US 08534182 B2, Sept. 17, 2013, Expanding chamber inlet controlled by contracting chamber pressure or flow, Robert D. Keller et al. / Eaton Corporation (Cleveland, US)
A hydraulic control system for a valve train comprising:…

Fluid Distributor Apparatus and Punching Method
US 08485087 B2, July 16, 2013, With means to vary feedback signal in response to rate of working member movement, Giorgio Ostini / Euromac S.p.A. (Formigine (MO), IT
A fluid distributor apparatus comprising:…

Electro-Mechanical Control System for Positioning Fluid Motors
US 08468931 B2, June 25, 2013, Cable, James B. Johnson
A fluid motor control system comprising:…

Axial Piston and Valve Shaft Fluid Engine
US 08474363 B2, July 2, 2013, Working member adapted to directly mechanically reverse distributor, Vincent M. Kelly
A fluid engine comprising:…

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