| Patents for F04B 39 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups (22,436) |
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| 01/19/1982 | US4311437 Radial piston pump |
| 12/10/1981 | WO1981003534A1 Valve for volume displacement machines |
| 12/09/1981 | EP0041428A1 Device for reducing the noise created by a hermetically sealed piston compressor |
| 12/09/1981 | EP0041225A1 Domestic equipment device for evacuating |
| 12/08/1981 | US4304534 Piston cylinder for compressor |
| 12/02/1981 | EP0040930A1 Valve structure with seating member composed of fibre reinforced plastic resin material |
| 12/02/1981 | EP0040911A1 Multicylinder swash plate compressor |
| 12/02/1981 | EP0040598A1 Compressor |
| 12/01/1981 | US4303372 Bleed valve particularly for a multi-stage compressor |
| 11/25/1981 | EP0040477A1 Multicylinder swash plate compressor |
| 11/25/1981 | EP0040475A1 Multicylinder refrigerant compressors having a muffler arrangement |
| 11/25/1981 | EP0040474A1 Multicylinder refrigerant compressors having a lubrication system |
| 11/24/1981 | US4302160 Silently operating fluid pump unit |
| 11/04/1981 | EP0038906A1 Ring-shaped plate valve |
| 11/03/1981 | US4298314 Hermetic compressor having a valve to drain liquid accumulations from its cylinder head |
| 11/03/1981 | US4297976 Piston and cylinder assemblies |
| 09/22/1981 | US4290489 Vibrationless pneumatic tools |
| 09/22/1981 | US4290345 Refrigerant compressors |
| 09/16/1981 | EP0035664A1 Air pump associated with a tank and method of cooling the pump |
| 09/16/1981 | EP0035569A1 Reciprocating pump |
| 09/15/1981 | US4289461 Liquid injected compressor with temperature control of liquid |
| 09/15/1981 | US4289159 Outlet valve for a gas compressor |
| 09/08/1981 | CA1108516A1 Antibiotic detection method |
| 09/08/1981 | CA1108424A1 Separation of lubricating oil from refrigerant gas in a reciprocating compressor |
| 09/02/1981 | EP0034691A1 Cylinder head for air compressor |
| 09/01/1981 | US4286976 Combined sound damper and oil trap for a compressed air apparatus |
| 09/01/1981 | CA1108102A1 Snap-fit lubricant pick-up tube for a motor compressor |
| 08/25/1981 | CA1107701A1 Hermetic compressor assembly including torque reaction leaf spring means |
| 08/18/1981 | US4283997 Refrigerant compressors |
| 08/11/1981 | US4283166 Fluid suction and discharge apparatus |
| 08/04/1981 | US4281972 Apparatus for controlling the performance of a motor compressor |
| 07/28/1981 | US4280909 Microporous member with interconnected, oriented tapered voids |
| 07/28/1981 | US4280799 Compressor with guide baffles and gas-permeable material separating means |
| 07/21/1981 | US4279578 Compact oil separator for rotary compressor |
| 07/21/1981 | CA1105424A1 Vertical axis hermetic rotary helical screw compressor with improved rotary bearings and oil management |
| 07/14/1981 | US4278106 Plate check valve |
| 07/14/1981 | US4277955 Twin compressor mechanism in one enclosure |
| 06/30/1981 | US4275999 Air compressor with ramped intake valve |
| 06/23/1981 | US4274813 Swash plate type compressor |
| 06/16/1981 | US4273519 Split crankcase radial automotive compressor |
| 06/16/1981 | US4273518 Swash-plate type compressor |
| 06/11/1981 | WO1981001598A1 Compressor |
| 06/09/1981 | US4272225 Electromagnetically-operated fixed displacement pump |
| 06/09/1981 | CA1102764A1 Refrigeration compressor apparatus and method of assembly |
| 06/02/1981 | CA1102210A1 Circular cavity discharge valve |
| 05/06/1981 | EP0028144A1 Support system for a reciprocating compressor piston |
| 05/05/1981 | CA1100457A1 Closing member for a ring valve |
| 05/05/1981 | CA1100319A1 Oil return system and method |
| 04/28/1981 | US4264282 Air compressor apparatus including noise-reducing means |
| 04/22/1981 | EP0027311A1 Gas compressor with a muffler |
| 04/07/1981 | US4260402 Housing means for defining air/oil separator and oil reservoir assembly |
| 04/02/1981 | WO1981000889A1 Reciprocating pump |
| 03/24/1981 | US4257457 Discharge valve apparatus of compressor |
| 03/10/1981 | US4255099 Oil separator for compressor |
| 03/10/1981 | CA1097287A1 Compressor unit, particularly for refrigerators |
| 03/10/1981 | CA1097090A1 Apparatus for controlling the performance of a motor compressor |
| 02/24/1981 | US4252332 Sealing device |
| 02/10/1981 | US4249564 Valve mount for a compressor pressure valve |
| 02/10/1981 | CA1095357A1 Engine driven vacuum pump |
| 01/27/1981 | CA1094519A1 Motor compressor |
| 01/13/1981 | US4244680 Rotary vane compressor with oil separating means |
| 01/13/1981 | US4244192 Refrigeration system and reciprocating compressor therefor with pressure stabilizing seal |
| 01/07/1981 | EP0020325A1 Compressor with a unique moving body operated by a unique rod |
| 01/06/1981 | US4242878 Isothermal compressor apparatus and method |
| 12/30/1980 | US4242056 Encapsulated refrigerator |
| 12/30/1980 | US4241758 Pressure valve, especially for rotary piston compressors |
| 12/23/1980 | US4240774 Hermetically sealed compressor suction tube and method of assembly |
| 12/16/1980 | US4239461 Compressor induction system |
| 12/09/1980 | US4238172 Hermetic motor-compressor |
| 12/09/1980 | US4237698 Motor cooling system for refrigeration machine |
| 12/09/1980 | CA1091200A1 Reciprocating refrigerant compressor valve arrangement |
| 12/02/1980 | US4236879 Hermetic motor-compressor |
| 12/02/1980 | US4236876 Multiple compressor system |
| 12/02/1980 | US4236621 Apparatus for protecting a compressor from breakdown |
| 11/04/1980 | US4231711 Extract of energy from the sea |
| 11/04/1980 | US4231394 Closing member for a ring valve |
| 10/21/1980 | US4229146 Air compressors |
| 10/21/1980 | US4229011 Lubrication system for reciprocating plunger compressors |
| 10/21/1980 | US4228820 Seat guided poppet valve having flow and dampening control means |
| 10/07/1980 | US4226572 Valve assembly for a multi-cylinder swash plate type compressor |
| 10/01/1980 | EP0016449A1 Valve lamina, especially for air compressor |
| 09/17/1980 | EP0015535A1 Process for the interstage cooling, without condensation, of compressed gases |
| 09/09/1980 | US4221544 Refrigerant compressor |
| 09/02/1980 | CA1084882A1 Variable displacement compressor |
| 08/26/1980 | US4218961 Lubricating system for high-pressure pump |
| 08/19/1980 | CA1084018A1 Compressor with versatile service line connection options and method of manufacture |
| 08/06/1980 | EP0014085A1 Air compressor equipment |
| 07/29/1980 | CA1082472A1 Refrigeration compressor lubrication |
| 07/23/1980 | EP0013629A1 Gas compressor or blower |
| 07/23/1980 | EP0013571A1 Aerating valve |
| 07/22/1980 | CA1081979A1 Integrated multi-unit refrigeration motor-compressor assembly |
| 07/08/1980 | US4211092 Space heating installation |
| 06/24/1980 | US4209080 Snap-fit lubricant pick-up tube for a motor compressor |
| 06/24/1980 | US4208953 Plunger for compressors |
| 06/24/1980 | US4208883 Compressors for heat pumps |
| 06/10/1980 | US4206805 Heat recovery unit |
| 05/06/1980 | US4201523 Device for cooling and silencing of noise of a compressor or vacuum pump |
| 05/06/1980 | CA1076825A1 Compressors for heat pumps |
| 04/30/1980 | EP0010090A1 Improvements to cylinder heads of piston compressors, particularly for refrigerating fluids |
| 04/29/1980 | US4200426 Hermetic compressor assembly including torque reaction leaf spring means |