| 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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| 04/24/1991 | CN2075711U Full cooling reciprocating vacuum pump |
| 04/23/1991 | US5009579 Fluid pump encasement |
| 04/18/1991 | WO1991005167A1 Lubricant circuit for a compressor unit and processes of circulating lubricant |
| 04/18/1991 | WO1991005165A1 Compressor for domestic refrigerators |
| 04/17/1991 | EP0422336A1 Rotary compressor electrical ground device |
| 04/16/1991 | US5007807 Hermetic compressor having resilient internal mounting |
| 04/16/1991 | US5007331 Dry run-high pressure stage of a multistage piston compressor |
| 04/16/1991 | US5007247 Refrigeration or heat pump installation |
| 04/09/1991 | US5006047 Compressor with a segmented piston rod assembly |
| 04/09/1991 | US5005376 Refrigerant injection into oil for sound reduction |
| 04/09/1991 | CA1282850C Cluster assembly with lead spacer |
| 04/09/1991 | CA1282817C Compressor terminal block and overload protector assembly |
| 03/30/1991 | CA2021084A1 Motor-compressor with means to reduce noise |
| 03/20/1991 | CN2073489U Air-water separating device with soundproofing funciton |
| 03/18/1991 | CA2019378A1 Positive stop for a suction leaf valve of a compressor |
| 03/13/1991 | EP0416831A2 Seal member and assembly |
| 03/05/1991 | US4998035 Method for attaching a motor lead restraint device to a compressor pump |
| 02/26/1991 | US4995795 Gas compressor |
| 02/26/1991 | US4995794 Vacuum pumps |
| 02/26/1991 | US4995791 Refrigerant gas compressor unit |
| 02/21/1991 | WO1991002159A1 Pump |
| 02/20/1991 | CN2071713U Mixed cooling piston compressor |
| 02/19/1991 | US4993922 Air compressor unloader system |
| 02/19/1991 | CA1280389C Reciprocating piston compressor for small refrigerating machines |
| 02/19/1991 | CA1280373C Noise suppressor for turbo-compressor |
| 02/14/1991 | DE4021475A1 Hermetically sealed refrigeration compressor cylinder head - is mfd. from two portions, and aperture, outside cylinder area, in one portion allows insertion and assembly of pressure valve |
| 02/13/1991 | CN2071262U Suction filter |
| 02/13/1991 | CN1011613B Coupling for pressure or vacuum fluid system |
| 02/06/1991 | EP0411195A1 Hermetic compressor |
| 02/05/1991 | US4990067 Hermetic compressor |
| 02/05/1991 | US4989636 Coupling for pressure of vacuum fluid system |
| 01/30/1991 | CN2070368U Hood type low-noise non-oil air-compressor |
| 01/29/1991 | US4988269 Hermetic |
| 01/29/1991 | US4988268 Air compressor |
| 01/29/1991 | CA1279579C Suction sound damper |
| 01/15/1991 | US4984973 Hermetic motor compressor unit having a hermetic terminal with electrically insulating anti-tracking cap |
| 01/15/1991 | US4984971 Anti-vibratory device to attach a hermetic compresser chamber to its base |
| 01/15/1991 | US4984361 Method of making a flat spring compressor valve |
| 01/09/1991 | EP0406866A1 Oil separator integrally mounted on compressor |
| 01/08/1991 | US4982812 Noise-preventive means for compressor used in air conditioner |
| 01/03/1991 | DE4017986A1 Oil cooling system for motor of refrigerant compressor - is arranged so that lower parts of motor windings are immersed in oil |
| 01/03/1991 | DE4012937A1 Suction gas supply to suction valve of refrigerant compressor - is hermetically sealed with suction side inlet in compressor capsule forming single unit with suction side gas damper |
| 01/02/1991 | EP0405613A1 Heat exchanger |
| 01/02/1991 | CN2068605U Cooling unit of air compressor |
| 01/01/1991 | US4981421 Valve arrangement |
| 01/01/1991 | US4981117 Automatic clearance adjuster |
| 12/25/1990 | US4979970 Method of manufacturing integrated optical component |
| 12/25/1990 | US4979885 Compressor with sealing means for internal gas and lubricant and having capability of lowering internal gas pressure |
| 12/19/1990 | EP0403239A2 Capacity controllable compressor apparatus |
| 12/19/1990 | EP0402577A1 Compressor mounting apparatus |
| 12/19/1990 | EP0402392A1 Apparatus including a compressor |
| 12/19/1990 | CN1010872B Lubrication system for compressor |
| 12/18/1990 | US4978285 Reed valve for hermetic compressor |
| 12/12/1990 | CN1010796B Sealing mechanism for sealing aperture on closed vessel |
| 12/11/1990 | US4976591 Self lubricating, two stage variable compressor |
| 12/11/1990 | US4976284 Reed valve for piston machine |
| 12/11/1990 | CA1277501C Suction line flow stream separator for parallel compressor arrangements |
| 12/08/1990 | WO1990015276A1 A valve unit for a reciprocating compressor for refrigerators and the like |
| 12/08/1990 | CA2033166A1 Valve unit for a reciprocating compressor for refrigerators and the like |
| 12/05/1990 | EP0400334A2 Oilless reciprocating compressor and expansion apparatus |
| 12/04/1990 | US4975028 Pump apparatus for evacuating containers |
| 12/04/1990 | US4974427 In a refrigeration system |
| 11/29/1990 | DE4003988A1 Hermetically encapsulated electric compressor for refrigeration unit - has simplified bearing assembly for vertical shaft drive and flexibly mounted compressor block |
| 11/27/1990 | US4972764 Combination of sliding members |
| 11/24/1990 | WO1990014517A1 Bellow-type pump with a plurality of radially arranged bellows |
| 11/24/1990 | CA2057067A1 Bellow-type pump with a plurality of radially arranged bellows |
| 11/21/1990 | CN1010497B Riciprocating piston using compression gaseous fluid |
| 11/20/1990 | US4971368 Seal for connecting a tube to a housing member and method for forming same |
| 11/14/1990 | EP0397006A1 Piston ring |
| 11/13/1990 | US4969832 Rotary compressor electrical ground device |
| 11/13/1990 | US4969804 Suction line connector for hermetic compressor |
| 11/06/1990 | US4968222 Reciprocating compressor with an inter cooler for cooling the operational gas |
| 11/06/1990 | US4967572 Compressor assembly for supplying helium to a cryo-refrigerator |
| 10/31/1990 | EP0394328A1 Automatic clearance adjuster. |
| 10/31/1990 | CN1046594A Heat pipe enclosed refrigeration compressor |
| 10/23/1990 | US4964788 Hermetic terminal with terminal pin assemblies having fusible links and motor compressor unit including same |
| 10/23/1990 | US4964609 Compressor mounting apparatus |
| 10/18/1990 | DE4010759A1 Pressure valve with enclosed leaf spring - has provision to vary spring cross=section to suit different compressors |
| 10/11/1990 | DE3911269A1 Compressor |
| 10/09/1990 | CA1275080A1 Compressor mounted suction accumulator |
| 10/04/1990 | DE3910414A1 Compressor for refrigerating/deep-freezing appliances or plants |
| 10/03/1990 | CN2063175U Air compressor for vehicle |
| 10/03/1990 | CN1009852B Lubricating system of sealed compressor with horizontal crankshaft |
| 10/02/1990 | US4960368 Suction system for hermetic compressor of refrigeration |
| 09/27/1990 | DE3909346A1 Pressure valve for a compressor |
| 09/27/1990 | DE3909176A1 Pressure valve device for a piston compressor |
| 09/26/1990 | EP0389414A1 Piston compressor |
| 09/26/1990 | EP0388633A1 Pressure valve for a compressor |
| 09/26/1990 | EP0388525A1 Cooling and noise damping device for a pressurised air compressor unit |
| 09/26/1990 | CN1045633A Selaed air-compressor with spacer layer |
| 09/25/1990 | US4958990 Motor-compressor with means to reduce noise |
| 09/25/1990 | US4958499 Method and apparatus for checking the operation of a refrigerator-operated cryogenic pump |
| 09/25/1990 | CA1274494A1 Rotary compressor lubrication arrangement |
| 09/19/1990 | EP0388118A2 Rotating union with carbon graphite labyrinthine seal |
| 09/19/1990 | CN1045450A Compressor housing having structure for preventing slippage of vibroisolating members |
| 09/18/1990 | CA1274095A1 Oil management in a parallel compressor arrangement |
| 09/13/1990 | DE4007371A1 Outlet valve for rotary piston compressor |
| 09/13/1990 | DE4006338A1 Swash plate compressor for refrigeration system - incorporates oil-refrigerant separator chamber |
| 09/13/1990 | CA2011995A1 Rotating union with carbon graphite labyrinthine seal |
| 09/12/1990 | EP0386686A2 Compressor housing having a structure for preventing slippage of vibroisolating members |