| Patents for F04B 17 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors (9,703) |
|---|
| 04/30/1992 | DE4105118C1 Miniature electrostatic pump or flow velocity sensor - has active zone protected while remainder of semiconductor device is embedded in resin mass |
| 04/22/1992 | EP0481690A2 Method and apparatus for starting a displacer engine hydraulically |
| 04/22/1992 | CN2102382U Horizontal trunk piston pump of small four wheel tractor |
| 04/22/1992 | CN2102381U Electromagnetic pump |
| 04/21/1992 | US5106276 Electrohydraulic method and apparatus |
| 04/21/1992 | US5106274 Hermetic compressor |
| 04/21/1992 | US5106268 Outlet pressure control system for electromagnetic reciprocating pump |
| 04/21/1992 | US5106267 Outlet pressure control system for electromagnetic reciprocating pump |
| 04/20/1992 | CA2053708A1 Method and apparatus for starting a free piston combustion engine hydraulically |
| 04/16/1992 | DE4032555A1 Electromagnetically-operated pump for hydraulic braking system - uses magnetostrictive actuator acting on piston or membrane for varying vol. of pump pressure space |
| 04/14/1992 | US5104299 Electromagnetic reciprocating pump |
| 04/14/1992 | US5104298 Diaphragm-type air pump with an efficient core |
| 04/01/1992 | CN2100508U Breeze pumper |
| 03/31/1992 | US5100304 Solenoid-operated reciprocating pump |
| 03/31/1992 | CA1298246C Portable progressive cavity pump |
| 03/05/1992 | DE4027564A1 Shaft for electric motor - has cavity formed by hole through its length, and filled with damping material |
| 03/03/1992 | USH1027 Aerosol modulating nozzle |
| 02/26/1992 | CN2097291U Plunger pump with multiple chambers |
| 02/20/1992 | WO1992002730A1 Free-piston engine |
| 02/18/1992 | US5088902 Piston type metering pump |
| 02/11/1992 | US5087846 Submersible motor housing |
| 02/06/1992 | DE4024632C1 Opposed piston two=stroke engine - has free pistons with motion controlled by hydraulic system |
| 02/06/1992 | DE4024591A1 Freikolbenmotor Free-piston engine |
| 01/28/1992 | US5083905 Linear motor powered pump unit |
| 01/14/1992 | US5080559 Liquid metal electric pump |
| 01/09/1992 | DE4021594A1 Magnetic pump using ferromagnetic powder - has powder drop reciprocated in closed cylinder via applied magnetic fields |
| 01/08/1992 | EP0465242A1 Method and apparatus for producing compressed air |
| 01/04/1992 | WO1992001154A1 Method of and device for providing compressed air and water pumping device using air thus compressed |
| 01/01/1992 | CN2091966U 柱塞泵 Piston |
| 12/26/1991 | WO1991019903A1 Fluid pumps |
| 12/18/1991 | EP0461808A2 Pump apparatus |
| 12/17/1991 | US5073095 Whisper quiet electromagnetic fluid pump |
| 12/17/1991 | US5073092 Diaphragm pump |
| 12/17/1991 | CA1293197C Free-piston motor with hydraulic or pneumatic energy transmission |
| 12/04/1991 | EP0185706B1 Solar powered pump assembly |
| 11/12/1991 | US5064353 Pressure responsive linear motor driven pump |
| 11/06/1991 | CN1055982A 驻波压缩机 Standing compressor |
| 10/30/1991 | CN2087703U 电磁活塞泵 Electromagnetic piston pump |
| 10/29/1991 | CA1291368C Hybrid high pressure pump for gas-liquid permeameters |
| 10/16/1991 | EP0452261A1 Wheeled hydraulic power unit |
| 10/16/1991 | EP0233199B1 Disposable diagnostic plasma filter dispenser |
| 10/16/1991 | CN2086807U Magnetic fluid pump |
| 10/08/1991 | US5055011 Electromagnetic type reciprocating pump |
| 10/02/1991 | EP0246227B1 Cyclic speed control apparatus in variable stroke machines |
| 10/01/1991 | US5052901 Lift valve in a rotary screw machine |
| 09/18/1991 | EP0447134A2 Standing wave compressor |
| 09/18/1991 | EP0261180B1 Anti-contamination flow control in liquids |
| 09/17/1991 | US5049046 Pump control system for a downhole motor-pump assembly and method of using same |
| 09/05/1991 | DE4104033A1 Solar cell driven garden pump - has current supply controlled by storage and control electronics for operation of immersion pump |
| 09/04/1991 | EP0444387A1 A device for the electrical or manual operation of hydraulic actuators |
| 08/21/1991 | CN2083203U Electromagnetic oil-line pump |
| 08/14/1991 | DE4102710A1 Illumination device for optical appts. - produces light beam with rectangular cross=section, using patterned disc to break up incident beam AB DE4102507A The illumination device is for an optical appts. The device produces a beam of rectangular cross-section and has a spherical auxiliary mirror (1). There is a first collector disc (3), a refracting disc (4) and a second collecting disc (5). The refracting disc (4) is transparent to the visible spectrum and has a flat surface on the light incident side (8). The light exit side (7) is formed with several flat surfaces (7a,7b,7c) of rectangular shape. The surfaces (7a) are parallel to the surface (8) whilst all the other surfaces are inclined to the surface (7a) at the same angle. The refractory disc (4) is so positioned that its light incident surface (8) is at right angles to the optical axis (9) of the light source (L). USE - Illumination of optical appts. AN 91246752 TI Solenoid-driven pump - has piston-mounted permanent magnets beyond which ends of stator core on rim of coil do not protrude in axial direction |
| 08/14/1991 | CN2082773U Power-frequency wave-separated type water pump |
| 07/30/1991 | CA1286915C Low pressure metering fluid pump |
| 07/11/1991 | WO1991010242A2 Magnetic drive with permanent-magnet solenoid armature |
| 06/27/1991 | DE3942542A1 Bistabiler magnetantrieb mit permanentmagnetischem hubanker Bistable magnetic drive with permanent magnetic lifting armature |
| 06/26/1991 | EP0433649A1 Fluid metering pump |
| 06/19/1991 | EP0432230A1 Use of a device for power supply |
| 06/11/1991 | US5022827 Paint sprayer apparatus including rapidly changeable prime movers |
| 05/29/1991 | EP0428654A1 Vacuum collecting vessel for flushing water |
| 05/28/1991 | US5018950 Electrohydraulic method and apparatus |
| 05/07/1991 | US5013223 Diaphragm-type air pump |
| 05/01/1991 | CN1051073A Micro-pump |
| 04/11/1991 | DE3933125A1 Electromagnetically operated positive displacement pump - has alternately energised coils controlling oscillating armature driving twin pistons with one-way valves for fluid transfer |
| 04/10/1991 | EP0421010A1 Wave powered pumping apparatus and method |
| 04/09/1991 | US5005639 Ferrofluid piston pump for use with heat pipes or the like |
| 03/27/1991 | CN1012199B Waveform actuating air compressor |
| 03/20/1991 | CN2073487U Hydraulic pump with plunger and through-hole |
| 03/13/1991 | CN1011998B Free-piston motor with hydraulic transmission |
| 03/06/1991 | EP0415013A1 Membrane pump |
| 03/05/1991 | US4998116 Multifunctional cell with a variable volume chamber and a fluid supply circuit for an ink jet printing head |
| 02/27/1991 | EP0413728A1 Lift valve in a rotary screw machine |
| 02/19/1991 | US4994984 System and device for supplying desired liquid volumes by means of a metering pump in variable flow rate condition |
| 02/19/1991 | CA1280314C Multifunction cell having a variable volume chamber and a fluid feeling circuit for an ink jet print head thus equipped |
| 02/13/1991 | CN2071260U Household wind pump |
| 01/31/1991 | DE3924118A1 Lubricator for machines with one lubricating head - at least has return valve connection with piston cylinder unit |
| 01/16/1991 | EP0408127A2 Pressure pump for flowable mediums |
| 01/15/1991 | US4984601 Unit apt to act upon the flow |
| 01/09/1991 | CN2069035U Electric water pump for electric boiling water kettle |
| 01/09/1991 | CN1048431A High pressure water-vapour spraying system of internal-combustion engine |
| 12/27/1990 | CA1278361C2 Low pressure metering fluid pump |
| 12/19/1990 | CN2067770U 磁能谐振压缩机 Magnetic resonance compressor |
| 12/13/1990 | WO1990015201A1 Vacuum collecting vessel for flushing water |
| 12/13/1990 | WO1990015199A1 Pressure-generating hollow body |
| 11/29/1990 | DE4015780A1 Compression control for electromagnetic reciprocating-piston pump |
| 11/27/1990 | US4972994 Operational mode conversion for pressure washer spray |
| 11/22/1990 | DE4010216A1 Electrohydraulic impulse piston pump - makes use of spark discharge in dielectric fluid |
| 11/20/1990 | US4971528 Lube oil pump with relief valve |
| 11/06/1990 | US4967831 Ferrofluid piston pump for use with heat pipes or the like |
| 08/28/1990 | CA1273243A1 High pressure fluid pump |
| 08/15/1990 | CN1009216B Loop pump |
| 08/01/1990 | CN1009022B 挤压泵 Extrusion pump |
| 07/31/1990 | US4944661 Electro-magnet actuated fuel piston pump |
| 07/26/1990 | DE3941442A1 Liquid pump driven by electric motor for medium and high pressures - has single shaft for pump and electric motor e.g. for car washing |
| 07/18/1990 | EP0277131B1 Loop pump |
| 07/10/1990 | US4940035 Internal combustion engine fuel |
| 06/28/1990 | WO1990007190A1 Device for the introduction of liquid or gaseous samples into a vaccum chamber |
| 06/27/1990 | EP0374739A1 A motor pump unit for a high-pressure cleaner |
| 06/12/1990 | CA1270295A1 Planar multi-junction electrochemical cell |
| 06/06/1990 | CN1042756A Electronic-controlled double-direction magnetic driving reciprocating pump |