Expansible chamber devices inventions 07/06

20060162546 - Sealing member of a compressor: A coat of material impermeable to coolant gas is formed on the surface of a sealing member of a compressor for absorbing and compressing the coolant gas....

20060162547 - Diaphragm for a diaphragm valve: A diaphragm for a diaphragm valve in particular for liquid fluids includes a backing membrane and a primary membrane which are supported by a central connection pin. Disposed axially between the backing membrane and the primary membrane is a reinforcing element....

20060162548 - Rotary hydraulic cylinder: A rotary fluid pressure actuator includes a housing having an inner actuator chamber with a cylindrical side wall extending between a pair of end walls. An integral vane rotor assembly, including a shaft and end discs, is positioned in the chamber and is rotationally reciprocated in response to the direction...

20060162549 - Air pump having cylinder with non-circular configuration in cross section: An air pump has a cylinder with a non-circular configuration in a cross section. A bar has a handle and an adapter at opposite ends respectively. A piston having a configuration fitted with the cylinder is connected to the adapter. A nozzle is communicated with the cylinder. A pivot is...

20060162550 - Piston for a two-cycle engine: A piston for a two-cycle engine having a piston head and a piston wall in which are disposed wrist pin eyes. At least one undercut is formed between the underside of the piston head and the wrist pin eyes at a distance from the piston head. The undercut extends from...

20060162551 - Piston and a power cylinder fitted therewith: A piston for a fluid operated power cylinder has two mutually coaxial sealing lips axially extending away from each other and being able to radially yield, for sealing engagement with the piston running face of the power cylinder and adjacent to at least one piston end side an elastic buffer...

20060156917 - Cylinder liner and cylinder block: A cast iron cylinder liner of the present invention includes a plurality of grooves formed on an outer surface of the cylinder liner. Each of the grooves extends in a circumferential direction of the cylinder liner in a ring or spiral shape, and the grooves divide the outer surface of...

20060156918 - Piston and scraper assembly: A piston and scraper assembly (26) for a high-pressure liquid chromatography column (1) is provided with a snap lock between the piston (5) and the scraper (25). The snap lock comprises a groove (23) in the piston wall (17), a complementary groove (39) in the inner face of the scraper...

20060144222 - Pneumatic reciprocating motor: A gas-actuated reciprocal drive apparatus has a double-acting piston in a pneumatic cylinder having a chamber at each end. Gas from an area of higher pressure in a compressed gas system flows into a first chamber, while the second chamber is in fluid communication with an area of lower pressure...