Featured patents

Low Leakage Plunger Assembly for a High Pressure Fluid System
US 08757047 B2, June 24, 2014, Flexible, David L. Buchanan et al. / Cummins Inc. (Columbus, US)
A fluid control device for use in a high pressure fluid system, comprising:…

Crankshaft-Link Piston Machine
US 08770089 B2, July 8, 2014, With Linkage or Transmission Having Relatively Movable Members, Evgeny Nikolaevich Zakharov
A crank-and-rocker piston machine, comprising a case accommodating a crankshaft…

Cylinder Sleeve
US 08720319 B2, May 13, 2014, Cylinder Detail, Stefan Gaiselmann et al. / MAHLE International GmbH (Stuttgart, DE)
A cylinder sleeve (10) comprising an outer mantle surface (11) that has a surface…

Reciprocating Pump Assembly
US 08707853 B1, April 29, 2014, With Guide or Seal on Cylinder End Portion for Piston or Member Moved by Piston, David Arnoldy et al. / S.P.M. Flow Control, Inc. (Fort Worth, US)
A reciprocating pump assembly, comprising:…

Axial Piston Machine With Rotation Restraint Mechanism
US 08689674 B2, April 8, 2014, Parallel cylinders, Noel Stephen Duke et al. / Duke Engines Limited (Auckland, NZ)
An axial piston machine acting as a thermodynamic engine, compressor, motor…

Vacuum-Assisted Brake-Force Booster for a Motor-Vehicle Braking System
US 08661964 B2, March 4, 2014, Extending through working member, Alexander Schlüter et al. / Lucas Automotive GmbH (Koblenz, DE)
Vacuum-assisted brake-force booster for a motor-vehicle braking system with:…

Two Piston Cylinder
US 08601934 B1, Dec. 10, 2013, Passage communicates with lateral port extending through piston side wall portion, Neal W. Westendorf / Westendorf Manufacturing Co., Inc. (Onawa, US)
A hydraulic cylinder comprising:…

Piston and Cylinder Assembly
US 08573113 B2, Nov. 5, 2013, Plural axially spaced lips, Nicholas Petek et al. / Bendix Commercial Vehicle Systems LLC (Elyria, US)
A piston and cylinder assembly, the assembly comprising:…

Cooling Channel Piston for an Internal Combustion Engine and Method for the Production Thereof
US 08485088 B2, July 16, 2013, With ported chamber in piston part for circulating heat exchange fluid, Reiner Feeser / KS Kolbenschmidt GmbH (Neckarsulm, DE)
A method for producing one-piece steel piston with a small compression depth…

Multicylinder Free Piston Machine
US 08464629 B2, June 18, 2013, With Movement Damping Means, Donald Murray Clucas / Suma Algebraica, S.L. (Aretxabaleta, ES)
A machine comprising multiple cylinders each housing a piston for reciprocating…

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