Expansible chamber devices inventions 05/07

20070119299 - Engine for model: The present invention provides an engine for model in which the number of parts can be reduced, the engine can be manufactured easily, the engine can be assembled for a short time, and the engine can be manufactured inexpensively. An engine for model in which a crankshaft is rotatably disposed... Agent: Jordan And Hamburg LLP

20070113734 - Piston for a two-stroke engine and a method of making the same: A piston (5) for a two-stroke engine (1) has a piston base (19) and at least one piston pin boss (24). The piston pin boss (24) has a bore for accommodating a piston pin. At the piston pin boss (24), two mutually opposite-lying planar clamping surfaces (36, 37) are formed.... Agent: Walter Ottesen

20070101858 - Axial piston machine for independent delivery into a plurality of hydraulic circuits: The invention relates to an axial piston machine having a first group of pistons (34.1) for delivering into a first hydraulic circuit and a second group of pistons (34.2) for delivering into a second hydraulic circuit. The pistons (34.1) of the first group and the pistons (34.2) of the second... Agent: Scully Scott Murphy & Presser, PC

20070101859 - Compressor: A compressor includes a thrust bearing, a first member and a second member that face to each other while sandwiching the thrust bearing therebetween, and a release portion that allows deformation of an outer region of one of races of the thrust bearing.... Agent: Foley And Lardner LLP Suite 500

20070101857 - Hydrostatic piston machine with two hydraulic circuits: The invention relates to a hydrostatic piston engine comprising a cylinder barrel (43) inside of which a first group of cylinder bores (53.1) and a second group of cylinder bores (53.2) are made. The cylinder bores of the first group (53.1) can be connected to a first hydraulic circuit, and... Agent: Scully, Scott, Murphy & Presser

20070101860 - Method and structure of preventing water from leakage for the pressurized pump of diaphragm type: The present invention is to provide a method and structure of preventing water from leakage for the pressurized pump of diaphragm type with steps orderly comprises: corresponding to the threaded hole on each wobble plate, a hollow cylinder is first contrived on the top surface of each piston acting region... Agent: Bacon & Thomas, PLLC

20070101861 - Two-speed cylinder: A two-speed cylinder of the invention comprises a cylinder tube having an open end and a closed end, with at least one cylinder port located in the tube. A bearing sleeve is movably mounted in the tube. The bearing sleeve comprises a body and a bearing sleeve head. The bearing... Agent: The Webb Law Firm, P.C.

20070095200 - Piston having asymmetrical pin bore slot placement: A piston, having a first side subject to major thrust loading and a second side subject to minor thrust loading, is provided. The piston has a crown portion and a first and second pin boss portion depending therefrom. An axially extending pin bore is provided within the first and second... Agent: General Motors Corporation Legal Staff

20070095201 - Piston: A number of embodiments of a piston may have a shape that provides enhanced piston guidance. In such embodiments, the piston shape may include an axial profile that is configured to provide certain thrust load characteristics.... Agent: Fish & Richardson P.C.

20070095202 - Piston: A number of embodiments of a piston may have a shape that provides enhanced piston guidance. In such embodiments, the piston shape may include an axial profile that is configured to provide certain thrust load characteristics.... Agent: Fish & Richardson P.C.