Expansible chamber devices inventions 12/07

20070295201 - Control of reciprocating linear machines: An apparatus and method for controlling the offset and dynamics of a moving assembly in a reciprocating linear machine such as a linear compressor, heat pump or engine, comprises a gas spring connected to the moving assembly of the reciprocating linear machine and a pressure adjuster for adjusting the gas... Agent: Nixon & Vanderhye, PC

20070295202 - Brake actuating device: A brake actuating device of a motor vehicle brake system includes a master cylinder and a brake booster with a booster housing, with an attaching element for attaching the brake actuating device to a wall on the vehicle projecting through an opening from the booster housing. To improve the assembly,... Agent: Ratnerprestia

20070289439 - Hydraulic cylinder of outrigger: A cylinder (40) is interposed between a machine frame and each of outriggers (10), which are vertically swingably disposed at opposite sides of the machine frame, so as to lift up and down the outrigger. Fluid passages (54a and 54b) are formed in a rod part (40b) of the hydraulic... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20070289440 - Pressure-medium cylinder with pressure intensification: For many applications pressure-medium cylinders have to achieve high adjusting forces which often impairs the dynamics of such cylinders due to the large piston cross sections and cylinder volumes, and/or pressure medium has to be supplied at very high pressure. The present invention shows a pressure-medium cylinder which has short... Agent: Ostrolenk Faber Gerb & Soffen

20070289442 - Half-sleeved and sleeveless plastic piston pumps: In one aspect, a brake pump assembly with a hydraulic block and a pumping element including a polymer piston that is received in a piston bore. A circumference of the polymer piston defines a high-pressure seal slideably engaging adjacent structure. The polymer piston may include a peripheral sealing lip projecting... Agent: Delphi Technologies, Inc.

20070283803 - Bellows arrangement: A bellows arrangement comprises at least one bellows having at least one elastic primary fold structure composed of annular primary folds following each other coaxially in sequence. The annular primary folds each comprise at least one secondary fold structure composed of a plurality of secondary folds distributed along the annular... Agent: Hoffmann & Baron, LLP

20070283805 - Hydraulic actuator for a servo of a gear change and corresponding method of fabrication: Described herein is a hydraulic actuator for a servo of a gear change provided with a control shaft; the hydraulic actuator displaces the control shaft axially along a central axis thereof, is set in a position corresponding to an intermediate portion of the control shaft, and has two chambers, which... Agent: Kenneth L. Sherman, Esq. Myers Dawes Andras & Sherman, LLP

20070283806 - Additive pump: A seal assembly for an additive pump having a reciprocating piston, said seal assembly including a seal carrier having first and second components each having a bore therein to receive said piston, each component having an end face arranged to abut one another when arranged axially on said piston, a... Agent: Blake, Cassels & Graydon LLP Commerce Court West