| Patents for F04B 53 - Component parts, details or accessories not provided for in, or of interest apart from, groups or (19,443) |
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| 12/26/1989 | USRE33135 Pump apparatus |
| 12/14/1989 | WO1989012166A1 Multichamber pump, valve for such a pump and use of the pump |
| 12/14/1989 | WO1989011038A3 Piston pump for multiphase fluids and applications thereof |
| 12/12/1989 | US4886093 Vent valve of an air pump |
| 12/06/1989 | EP0345210A1 Multichambers pump, valve for such a pump and use of it |
| 12/05/1989 | US4884594 Compact twin piston pump |
| 11/30/1989 | WO1989011593A1 Main bearing device for motor of bent axis type axial piston pump |
| 11/29/1989 | EP0343773A1 Fluid pump apparatus and valve device |
| 11/29/1989 | EP0343163A1 High pressure cleaning apparatus with a wobble plate piston pump. |
| 11/16/1989 | WO1989011038A2 Piston pump for multiphase fluids and applications thereof |
| 11/15/1989 | EP0341784A2 Liquid chromatography |
| 11/15/1989 | CN1037194A 泵 Pump |
| 11/07/1989 | US4878815 High pressure reciprocating pump apparatus |
| 11/02/1989 | WO1989010479A1 High-pressure piston cylinder unit |
| 11/02/1989 | EP0340150A1 Rotary compressors |
| 10/31/1989 | US4876850 Combustion engine for solid block fuel |
| 10/24/1989 | US4876558 Pump device and an ink jet recording apparatus having the pump device |
| 10/24/1989 | US4875833 Pumping of high viscosity materials |
| 10/24/1989 | US4875690 Seal device for reciprocating pump |
| 10/18/1989 | EP0218664B1 High pressure sealing device between two elements in relative motion |
| 10/05/1989 | DE3808901A1 Radial piston pump, in particular for motor-vehicle brake systems with ABS |
| 09/26/1989 | US4869655 Compact twin piston pump |
| 09/26/1989 | US4869653 Compact twin piston pump |
| 09/26/1989 | CA1261677A1 Pump |
| 09/26/1989 | CA1260317A1 Well pump |
| 09/13/1989 | EP0332100A2 Deaerator for a liquid-pump |
| 09/13/1989 | EP0331683A1 Very high pressure piston pump. |
| 09/12/1989 | US4865525 Metering pump |
| 09/08/1989 | WO1989008189A1 Bore hole pump |
| 09/05/1989 | US4862911 Check valve assembly for high pressure pumps |
| 08/29/1989 | US4861241 Valve guide bracket |
| 08/29/1989 | US4860995 Valve element for use in pumps for handling fluids containing abrasive materials |
| 08/22/1989 | US4860158 Low pressure metering fluid pump |
| 08/08/1989 | US4854835 Plunger pump |
| 08/01/1989 | USRE33003 Joint system |
| 07/27/1989 | WO1989006751A1 Piston pump for a high-pressure cleaning appliance |
| 07/26/1989 | EP0324868A1 Piston pump for a high pressure cleaning apparatus |
| 07/25/1989 | US4850828 Plunger pump of quick pressure-rise type |
| 07/25/1989 | US4850826 Suction pump with collapsible bellows |
| 07/13/1989 | DE3744636A1 Valve-closing body |
| 07/13/1989 | DE3742824A1 Pump |
| 07/11/1989 | US4846308 Liquid feed pump system |
| 07/05/1989 | EP0322455A1 Plunger pump |
| 06/27/1989 | US4842495 Non throttling discharge pump assembly |
| 06/27/1989 | US4841846 Pneumatic actuators with liquid seals for oil and gas well swabs |
| 06/27/1989 | CA1256305A1 Methods of pumping and loading emulsion slurry blasting compositions |
| 06/20/1989 | US4840548 High pressure plunger pump |
| 06/20/1989 | CA1255966A1 Mud pump |
| 06/13/1989 | EP0217796A4 A pump. |
| 06/13/1989 | EP0183823A4 Single valve diaphragm pump with decreased sensitivity to ambient conditions. |
| 06/06/1989 | CA1255113A1 Joint system |
| 06/01/1989 | DE3738814A1 Automatic disc valve |
| 05/31/1989 | EP0317716A2 Suction and force plunger pump |
| 05/30/1989 | US4834268 Dispensing cartridge with delivery piston |
| 05/30/1989 | US4833976 Sealing means for a high pressure axial piston pump |
| 05/24/1989 | EP0316537A1 Dosing pump |
| 05/23/1989 | US4832583 Low pressure metering fluid pump |
| 05/09/1989 | US4827968 Check valve for an electromagnetic fluid pump having a dual valve seat |
| 04/26/1989 | EP0312597A1 Piston of volume displacement machine |
| 04/25/1989 | US4824368 Oral hygiene appliances |
| 04/25/1989 | US4824342 Chemical injector system for piston pumps |
| 04/25/1989 | US4824337 Valve assembly for an oscillating pump |
| 04/25/1989 | US4824335 Modular high pressure pump |
| 04/25/1989 | US4824334 Modular hydraulic power system |
| 04/20/1989 | WO1989003479A1 Compact twin piston pump |
| 04/18/1989 | US4822261 Low head, high volume pump apparatus |
| 04/12/1989 | EP0310642A1 Standard gas flow apparatus |
| 04/11/1989 | US4820137 Well pump |
| 04/11/1989 | US4819689 Head-guided poppet valve member and valve assembly |
| 04/05/1989 | EP0310254A2 Reciprocating pump unit |
| 04/04/1989 | US4818194 Check valve assembly for fluid pressure intensifying apparatus |
| 04/04/1989 | US4818192 Reciprocating pump |
| 04/04/1989 | US4817503 Diaphragm pump with pressure chamber having a ribbed wall |
| 03/29/1989 | EP0309240A2 Pump and valve apparatus |
| 03/29/1989 | EP0308541A1 Pressure chamber of diaphragm pump |
| 03/29/1989 | EP0308468A1 Hydraulic manually-operated single-piston pump. |
| 03/28/1989 | US4815948 Vibratory pump |
| 03/21/1989 | US4813342 Cryogenic pump multi-part piston with thermal expansivity compensated polytetrafluoroethylene seal rings |
| 03/16/1989 | DE3829698A1 Piston pump, in particular radial piston pump |
| 03/15/1989 | EP0307387A1 Pump rod guides for rotating pump drives |
| 03/09/1989 | DE3729077A1 Reciprocating pump |
| 03/07/1989 | US4810169 Pump unit |
| 03/07/1989 | US4809503 Solid fuel bar combustion device and a compressor |
| 03/02/1989 | DE3727831A1 Automatic valve, particularly an inlet or outlet valve for metering pumps |
| 03/01/1989 | EP0304964A2 Apparatus for producing ultrahigh pressure water jet |
| 02/28/1989 | US4808093 Vertical plunger pump with active plunger heat exchange |
| 02/28/1989 | US4808092 Precision reciprocating metering pump |
| 02/28/1989 | US4808089 Reciprocating pump for a medication administering device |
| 02/21/1989 | US4806083 Submersible pump with expanded foam housing |
| 02/21/1989 | US4806082 Fluid actuated pump with improved flow-limiting fluid refill valve |
| 02/14/1989 | USRE32865 Fiberglass sucker rod construction |
| 02/14/1989 | US4804290 Latching and sealing device |
| 02/14/1989 | CA1249983A1 HIGH PRESSURE RECIPROCATING MOTION COMPRESSOR AND USE THEREOF FOR THE POLYMERIZATION OF ETHYLENE AND .alpha.-OLEFINS |
| 02/01/1989 | EP0301303A1 Piston pump for compressing fluids or gases |
| 01/31/1989 | US4800801 Pump |
| 01/24/1989 | US4799421 Hydrodynamic spiral-grooved journal bearing for electromagnetically rotated and reciprocated compressor piston |
| 01/18/1989 | CN1030464A Radial piston pump for conveying water |
| 01/03/1989 | US4795063 Fluid discharging device |
| 01/03/1989 | CA1247935A1 Vent-relief valve for a wet motor gerotor fuel pump |
| 12/20/1988 | US4792289 Reciprocating pump for cryogenic fluids |