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| Number | Title | Issue Date |
| 7074022 | Discharge valve assembly for reciprocating compressors A reciprocating compressor including cylinder block with a plurality of cylinder bores. A piston is positioned in each bore and mounted to move in response to the a crankshaft, causing each piston to reciprocate within the cylinder bore. The compressor further inclu... | 07/11/2006 |
| 6095775 | Single-acting manual pump for lubrication line, with deformable valve element A single-acting manual pump for feeding lubricant to metering units provided in a lubrication line, of the type comprising a body (10) housing a piston (1) movable within a chamber (2) against the action of elastic means (3), and unidirectional valve mean... | 08/01/2000 |
| 5277560 | Ring valve type air compressor with deformable ring valves A ring valve assembly for use in a reciprocating type fluid pump with a piston cylinder and a cylinder head includes a ring valve having a fluid seal surface for selectively closing a fluid passage of a cylinder head and an annular ring retainer having a ... | 01/11/1994 |
| 5275541 | Fluid-operated valve for pumps and the like A diaphragm pump has a first fluid-operated valve which opens when the diaphragm performs a suction stroke and a second fluid-operated valve which opens when the diaphragm performs a compression stroke. The volumetric efficiency of the pump is enhanced by... | 01/04/1994 |
| 5267843 | Internal gas compressor and internal combustion engine An integral gas compressor and internal combustion engine. The compressor is built by converting a portion of an internal combustion engine to a compressor by removing the original engine head and valve train and replacing these with a compressor head ass... | 12/07/1993 |
| 5266015 | Compressor suction and discharge valve assembly A compressor assembly is disclosed including a compressor mechanism mounted within a hermetically sealed housing. A cylinder block contains a reciprocating piston in which the piston includes a suction valve assembly and an annular rim that substantially ... | 11/30/1993 |
| 5213487 | Ring valve type air compressor with deformable ring valves A ring valve assembly for use in a reciprocating type fluid pump with a piston cylinder and a cylinder head is disclosed. The valve assembly includes a ring valve having a fluid seal surface for a selectively closing a fluid passage of a cylinder head and... | 05/25/1993 |
| 4915595 | Valve/piston cartridge and rotor bearing pre-load for a radial piston pump A radial piston pump is provided with a plurality of valve/piston cartridges. Each cartridge includes the piston and at least one of the valves connecting the piston to the inlet and outlet passages of the pump. The bearings for the main rotor are pre-loa... | 04/10/1990 |
| 4701114 | Compressor suction gas heat shield A combination heat shield/gasket is disposed between abutting components in a reciprocating compressor. The heat shield/gasket includes strategically located protuberances, at locations where the components do not directly abut, the tips of which contact ... | 10/20/1987 |
| 4634353 | Valve head for high-pressure pumps In a pump valve head for a high-pressure pump having at least three pistons, the axial support of the parts surrounding the inlet valve in the intake connection is hydrostatically enhanced. For this purpose, a fluid flow path is provided between the inter... | 01/06/1987 |
| 4628958 | Ring valve A ring valve apparatus is designed for efficient transfer of liquids and gases and for attaining near-perfect vacuum state of gases. Intake means consist of a flexible ring valve and three ports encompassed by valve seats. Exhaust means include a rigid ri... | 12/16/1986 |
| 4565507 | Reciprocating compressor for gaseous media A reciprocating compressor includes an apertured valve disc between a cylinder and a cylinder head. Valve orifices in the disc are arranged about two concentric circles centered on the central axis of the cylinder. The same number of orifices are spaced a... | 01/21/1986 |
| 4549857 | Hermetic motor compressor having a suction inlet and seal The suction gas supply tubes are made integral with the seal for sealing the gap between the cylinder head and the cylinder block caused by the valve assembly. The suction gas supply tubes have flared inlets and a long, narrow tapering cross section to mi... | 10/29/1985 |
| 4536132 | Gas compressor A gas compressor drivably connected to an engine operates to supply compressed gas to a tank. The compressor has a housing including a commercial air cooled internal combustion engine block and cooling air system having a single cylinder chamber accommoda... | 08/20/1985 |
| 4532685 | Method of assembling a reciprocating compressor A method of assembling a reciprocating compressor, in which a piston for partitioning a cylinder into a compression chamber and a suction chamber is telescoped in the cylinder, a closure end plate is secured at an open end of the cylinder, the end surface... | 08/06/1985 |
| 4486157 | Reciprocating compressor A reciprocating compressor comprises a piston body reciprocally movably disposed within a cylinder housing and having first and second pistons which are coaxially aligned with each other. The first and second pistons define respectively first and second c... | 12/04/1984 |
| 4249564 | Valve mount for a compressor pressure valve A valve mount for a compressor pressure valve with a valve seat disposed in a bore formed in a cylinder head, wherein the valve mount is provided with a cooling chamber surrounding the external surfaces of a pressure chamber for transferring and dissipati... | 02/10/1981 |
| 4172696 | Low stress suction or discharge reed valve for compressor An improved low stress reed valve especially adapted for use as a suction or discharge valve in a reciprocating compressor or the like. The geometry and the relationship of certain key dimensions result in a substantially reduced stress on the valve, thus... | 10/30/1979 |
| 4115044 | Valve arrangement for compressor A valve arrangement for a compressor, particularly a compressor for compressing refrigerant, in which a compressor is provided with ports distributed circumferentially about the axis of the piston and cylinder of the compressor and with a valve member in ... | 09/19/1978 |
| 4060098 | Valve plate construction A valve plate construction for use in a refrigerant compressor is disclosed. A method of assembling and joining by brazing a pair of end plates, a spacer plate defining radial passages and a collar defining an axial passage is described. The product is th... | 11/29/1977 |
| 4059366 | Thermal overload protective system A system for protecting a machine against thermal overload, in particular, a compressor, and more particularly still, in respect of thermal protection of the valving of a compressor. The compressor is provided with a heat sensitive element in close proxim... | 11/22/1977 |
| 3986798 | Piston compressor A piston compressor is disclosed which comprises a cylinder head having a channel of essential length for cooling the compressed fluid before it leaves the compressor.... | 10/19/1976 |
| 3971407 | Means for locating suction valve An improved valve assembly for a reciprocating compressor including a valve member having inlet openings, a valve positioned adjacent the valve member being arranged to cover the inlet openings, a valve backing surface dimensioned to allow controlled move... | 07/27/1976 |
| 3944381 | Compressor valving Valve means for use in a reciprocating compressor having cylinder means with a piston operable therein. The valve means include an inlet body and a discharge valve assembly, with the inlet body having a base incorporating an inner wall member and an outer... | 03/16/1976 |
