| Patents for F04B 43 - Machines, pumps, or pumping installations having flexible working members (13,111) |
|---|
| 07/31/1991 | EP0438523A1 Self-enclosed filter pumping system |
| 07/31/1991 | EP0438428A1 Double acting bellows-type pump. |
| 07/26/1991 | CA2034502A1 Viscous fluid pressure-feed apparatus |
| 07/25/1991 | WO1991010934A1 Peristaltic pump monitoring device and method |
| 07/25/1991 | WO1991010831A1 Peristaltic motor |
| 07/25/1991 | DE4002061A1 Electric peristaltic pump for laboratory - has hoses on support spring-loaded against valve cams or eccentric |
| 07/24/1991 | CN1053283A 筒式软膜深水泵 Drum deep soft membrane pumps |
| 07/23/1991 | US5033943 Low fluid shear pump |
| 07/16/1991 | US5032064 Pump for pressure exceeding one thousand atmospheres |
| 07/16/1991 | US5032063 Precision fluid pump |
| 07/16/1991 | CA1286179C Pump |
| 07/16/1991 | CA1286149C Snap-together peristaltic mechanism |
| 07/10/1991 | CN2080574U Pocket hand pump |
| 07/09/1991 | US5029805 Valve arrangement of microstructured components |
| 07/09/1991 | CA1285820C Peristaltic pump |
| 07/04/1991 | DE3942981A1 High pressure water pump aggregate - uses central plate to form membrane stroke boundary wall |
| 07/03/1991 | EP0435653A1 Micropump |
| 06/19/1991 | CN2079227U Composite pneumatic bellows pump with liner |
| 06/18/1991 | US5024586 Accurate peristaltic pump for non elastic tubing |
| 06/18/1991 | US5024347 Adjustably controllable accuracy-enhancing pump arrangement and method |
| 06/15/1991 | WO1991009229A1 Accurate peristaltic pump |
| 06/13/1991 | WO1991008003A1 Electrohydraulic drive for pumps e.g. artificial hearts |
| 06/13/1991 | DE3943585A1 Membrane pump for delivery of metallic lacquer - use of externally removable inlet and outlet valves |
| 06/13/1991 | DE3940730A1 Peristaltic flexible hose pump - has rotor with rollers mounted on spring-loaded levers |
| 06/13/1991 | DE3940629A1 Compressed air membrane or piston pump - uses integrated pressure reduction valve |
| 06/12/1991 | EP0431753A1 Reciprocating pump |
| 06/12/1991 | EP0431726A2 Peristaltic pump with mechanism for maintaining linear flow |
| 06/11/1991 | CA1284747C Device for detecting a split at the membrane of a diaphragm pump |
| 06/05/1991 | EP0429591A1 Improved micro-pump. |
| 06/05/1991 | CN2078383U Hand-operated double-chamber self-sucking water pump |
| 06/04/1991 | US5020636 Piezoelectric lubricating device for a bearing |
| 06/04/1991 | CA1284599C2 High pressure flow through diaphragm pump |
| 06/04/1991 | CA1284598C Self-loading peristaltic pump |
| 06/02/1991 | CA2031132A1 Solution pumping system including disposable pump cassette |
| 05/29/1991 | CN2077914U Portable fuel-absorbing device for motor-driven vehicles |
| 05/29/1991 | CN2077913U Simple fuelling apparatus for motor-driven vehicles |
| 05/29/1991 | CN2077912U Bellows pump |
| 05/28/1991 | US5018949 Diaphragm pump |
| 05/28/1991 | US5018945 Accurate peristaltic pump |
| 05/22/1991 | EP0427988A1 Membrane pump |
| 05/22/1991 | EP0259464B1 Method and system for infiltration detection using pressure measurment |
| 05/21/1991 | US5017100 Integral pump and check valve apparatus |
| 05/21/1991 | US5017059 Infusion device with disposable elements |
| 05/15/1991 | CN2077045U 手动泵阀管 Manual valve tube |
| 05/14/1991 | US5014881 Metering and spray pump for liquid and low-viscosity substances |
| 05/11/1991 | WO1991007591A1 Micropump with improved priming |
| 05/11/1991 | CA2045398A1 Micropump with improved priming |
| 05/08/1991 | EP0426273A1 Pumping device |
| 05/08/1991 | CN2076612U Valve for gasoline pump |
| 05/07/1991 | US5013223 Diaphragm-type air pump |
| 05/07/1991 | US5012649 Power actuator |
| 05/02/1991 | EP0424859A2 Tube pump mechanism and ink jet recording apparatus equipped therewith |
| 05/02/1991 | DE3935502A1 Blood pump pendulum, bearing - uses contactless magnetic drive to produce swivel |
| 05/01/1991 | CN2076172U Bibody diaphragm pump |
| 04/30/1991 | US5011380 Magnetically actuated positive displacement pump |
| 04/30/1991 | US5011379 Electromagnetic diaphragm pump |
| 04/24/1991 | EP0424087A1 Micro-pump or micro-discharge device |
| 04/24/1991 | CN2075713U Limit oil compensating tube diaphragm metric pump |
| 04/24/1991 | CN2075712U Siphon-pump |
| 04/23/1991 | US5009580 Multiple reciprocating pump |
| 04/23/1991 | US5009573 Variable occlusion peristaltic apparatus and method |
| 04/18/1991 | DE3933445A1 Twin piston high pressure pump aggregate - makes use of sensors to determine stroke sequence |
| 04/17/1991 | EP0422855A1 Two-cycle peristaltic pump |
| 04/17/1991 | EP0288466B1 Pump |
| 04/17/1991 | CN2075276U Convenient oil adder |
| 04/17/1991 | CN2075263U Tube type hydraulic pump with diaphragm |
| 04/10/1991 | EP0334898B1 Peristaltic pump |
| 04/10/1991 | CN2074829U Rubber sealing ring for corrosion-resistant pump |
| 04/10/1991 | CN2074828U Universal safety liquid taking device |
| 04/09/1991 | US5006104 Heart pump having contractible guide mechanism for pusher plate |
| 04/09/1991 | US5006103 Disposable container for a centrifuge |
| 04/09/1991 | US5006050 High accuracy disposable cassette infusion pump |
| 04/09/1991 | CA1282737C2 Flow control system using boyle's law |
| 04/04/1991 | DE3943430A1 Rotary hose pump esp. for dosing and analysing equipment - has pressure rollers compacting hose mounted on movable adjusters for variable spacing w.r.t. rotor axis |
| 04/03/1991 | EP0420576A2 Method for the production of an improved diaphragm pump |
| 04/03/1991 | EP0419695A1 Slurry pumping apparatus |
| 04/03/1991 | CN2074381U High-efficient corrosion-resisting pump |
| 03/27/1991 | EP0418644A1 Diaphragm pump with a mechanically operated diaphragm |
| 03/27/1991 | CN1012199B Waveform actuating air compressor |
| 03/26/1991 | US5003239 Peristaltic pump monitoring device |
| 03/26/1991 | US5002471 Disposable cell and diaphragm pump for use of same |
| 03/26/1991 | US5002469 Switching device for reciprocating pumps |
| 03/26/1991 | US5002468 Switching device for reciprocating pumps |
| 03/20/1991 | EP0417402A2 Membrane pump |
| 03/20/1991 | CN2073490U Handpump for the use of liquid split charging |
| 03/14/1991 | DE3929844A1 Pump aggregate for pressures above 100 bar - makes use of control distributor shaft working with hydraulic motor |
| 03/13/1991 | CN2073040U Compound diaphragm of bellows pump |
| 03/12/1991 | US4999660 Dual chamber pump assembly and a replenishment system for a film processor incorporating such a pump assembly |
| 03/12/1991 | CA1281234C Diaphragm |
| 03/07/1991 | WO1991002900A1 Variable occlusion peristaltic apparatus and method |
| 03/06/1991 | EP0415013A1 Membrane pump |
| 03/06/1991 | EP0319565B1 A transporter |
| 03/05/1991 | US4997347 Peristaltic motor |
| 02/27/1991 | CN2072160U Oil pump |
| 02/26/1991 | US4995864 Dual chamber pumping apparatus |
| 02/26/1991 | US4995432 For feeding liquid doses |
| 02/26/1991 | CA1280641C Mechanical shift, pneumatic assist pilot valve for diaphragm pump |
| 02/21/1991 | WO1991002161A1 Fluid pumping apparatus and system with leak detection and containment |
| 02/21/1991 | WO1991002158A1 Pulseless piston pump |
| 02/21/1991 | DE4023961A1 One-piece pressure-cast aluminium pump housing - has initial hardened surface of limited depth worked to provide required extent of and surface finish for hardened region |