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| Number | Title | Issue Date |
| 6125492 | Automatic swimming pool cleaning device An automatic swimming pool cleaning device (10) includes a flexible cleaning member (12) which is designed to contact an underwater surface of the swimming pool. A tube (14) is coupled to the cleaning member (12) for connecting the cleaning device (10) to... | 10/03/2000 |
| 5346373 | Refrigeration compressor having a spherical discharge valve A small single cylinder hermetic refrigeration compressor has a flat valve plate extending across the end of the cylinder. A discharge port is formed in the valve plate with a spherical valve seat and a spherical poppet member is moveable to and from the ... | 09/13/1994 |
| 5261565 | Thin film beam spring vent valve A thin film beam spring valve is provided for use in a squeeze pump package. The squeeze pump package includes a resilient outer bottle and an inner flexible bag with a rigid fitment. An apertured diptube is utilized to enable substantially all of the pro... | 11/16/1993 |
| 5203686 | Rotary compressor with span type discharge valve The valve assembly for a rotary compressor includes an elongated valve member which rests on pads on each side of the valve seat and includes an intermediate sealing section normally sealing against the valve seat. An elongated valve spring biases the sea... | 04/20/1993 |
| 5173040 | Air compressor An air compressor comprises a cylinder, a suction valve body operatively combined with the cylinder, wherein the suction valve body is in a form of a band plate having a shape of V-letter with a round bottom, both ends of the suction valve body being arra... | 12/22/1992 |
| 5165449 | Discharge valve for a compressor A discharge valve for a compressor having a closed polygonal loop shape and provided with a shutting device formed as a protrusion for tight insertion into a discharge passage, a shutting member in close contact with a valve plate, flexible device continu... | 11/24/1992 |
| 5144986 | One way flow device A one-way flow device (10) for use in a passageway (18) is provided. The device (10) comprises first (12) and second (14) walls attached together to form a passageway (18). A flexible diaphragm (20) having at least one orifice (24) extends across the pass... | 09/08/1992 |
| 4801250 | Valve structure for a compressor A V-twin, two-stage compressor has valve plates disposed between the head and cylinder of each stage and mounting free-floating flexible reed intake and exhaust valves therein. The flexible reeds are movably captured between the floors of respective reed ... | 01/31/1989 |
| 4725202 | Gas-operated pump A pump comprising an elongated housing adapted to be positioned in a landfill gas well. The housing has a peripheral wall, an interior chamber and apertures in the peripheral wall leading from the exterior of the housing to the chamber so that liquid can ... | 02/16/1988 |
| 4537566 | Valve assembly for a compressor An improved valve plate assembly is disclosed herein which is particularly well suited for use in compressors and particularly refrigeration compressors employing pressure responsive reed type valving. The present invention provides several arrangements w... | 08/27/1985 |
| 4471804 | Blade valves for compressors A blade valve for a compressor comprises two discs which are arranged one above the other with the interposition of a seal. The discs are provided with ducts for the controlled medium and form both the valve seat and the catcher. In the seal, whose thickn... | 09/18/1984 |
| 4352377 | Compressor discharge valve A discharge valve assembly for a compressor includes a valve plate having a pair of projecting guideposts. A discharge port is located in said valve plate closer to one of the posts than the other post and a stop member is mounted on the guidepost to defi... | 10/05/1982 |
| 4325680 | Valve system for encapsulated motor-compressor units The invention relates to a valve system for encapsulated motor-compressor units comprising a cylinder, a piston moving with reciprocating motion in the cylinder, a valve plate which upperly closes the cylinder, and a head fixed on to the valve plate, wher... | 04/20/1982 |
| 4305424 | Valve assembly A valve assembly having a cylindrical valve chamber with radially directed inlet orifices and with a circular spring leaf which resiliently seals the orifices and which may be deflected by fluid pressure within the inlet orifices to open the orifices. The... | 12/15/1981 |
| 4257457 | Discharge valve apparatus of compressor In a discharge valve apparatus, a discharge port on a valve plate covered by a long thin discharge valve is formed in a elliptic shape as horizontal view whereby stress of the long thin discharge valve in longitudinal direction at its center is decreased ... | 03/24/1981 |
