Featured patents

Compression System Having Seal With Magnetic Coupling of Pistons
US 08863646 B2, Oct. 21, 2014, With Linkage or Transmission Engaging Portion Intermediate Spaced Working Member End Faces, Omar M. Kabir / GE Oil & Gas Compression Systems, LLC (Houston, US)
A system, comprising:…

Piston Assembly
US 08776670 B2, July 15, 2014, With ported chamber in piston part for circulating heat exchange fluid, Mike L. Wilder et al. / Mahle International GmbH GB
A piston assembly, comprising:…

Piston Pump
US 08770091 B2, July 8, 2014, Liquid between axially spaced side wall portions, Arne Lindekleiv
A piston pump comprising a cylinder with an inner cylinder wall and at least…

Flexible Chamber
US 08667888 B2, March 11, 2014, Bias other than coil spring, Nils T. Ottestad / Ottelstad Breathing Systems AS (Husousund, NO)
A chamber comprising an internal volume, an end surface and a side wall,…

Reciprocating Pump Having a Piston Assembly
US 08561523 B2, Oct. 22, 2013, Side wall portion includes peripheral axially extending flexible lip, Andrew Dale Riley et al. / National Oilwell Varco, L.P. (Houston, US)
A piston having a central axis and comprising:…

Energy Storage Device, Actuator and Method
US 08549986 B2, Oct. 8, 2013, Bias normally held inoperative by fluid pressure, Jack David Farmer / Baker Hughes Incorporated (Houston, US)
An energy storage device comprising:…

Hydraulic Cylinder
US 08561522 B2, Oct. 22, 2013, Articulated connecting rod end forms portions of piston face, Hiroshi Funato et al. / Kayaba Industry Co., Ltd. (Tokyo, JP)
A hydraulic cylinder that expands and contracts in accordance with supply…

Cylinder Liner and Method of Manufacturing the Same
US 08505438 B2, Aug. 13, 2013, Cylinder or liner retained in casing by casing closure or closure associated means, Jinwoo Cho et al. / Yoosung Enterprise Co., Ltd. (Asan-Si, KR)
A method of manufacturing a cylinder liner, comprising:…

Zero Emissions Reciprocating Pump
US 08511219 B2, Aug. 20, 2013, With Guide or Seal on Cylinder End Portion for Piston or Member Moved by Piston, Herbert H. Tackett et al. / Clyde Union Inc. (Battle Creek, US)
A sealing system for a pump having a plunger, comprising:…

Piston-Pin Bore Dimensions for a Piston of an Internal Combustion Engine
US 08443715 B2, May 21, 2013, With separable means for pivotally mounting connecting rod to piston, Hartmut Kamp / KS Kolbenschmidt GmbH (Neckarsulm, DE)
A piston with a piston boss in which a piston-pin bore is located to accommodate…

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