Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04B - Positive-displacement machines for liquids; Pumps › F04B 43 - Machines, pumps, or pumping installations having flexible working members
Patents for F04B 43 - Machines, pumps, or pumping installations having flexible working members (13,111)
12/1991
12/18/1991EP0262182B1 Pressure-measurement flow control system
12/18/1991CN2090886U Mini-circulating air compressor
12/17/1991US5073094 Compression pump-catheter system
12/17/1991US5073092 Diaphragm pump
12/17/1991CA1293153C2 Parenteral solution diaphragm pump
12/16/1991WO1991019523A1 Peristaltic infusion device
12/12/1991WO1991019098A1 A valve arrangement and positive-displacement pump
12/12/1991WO1991019097A1 A flap valve arrangement
12/11/1991EP0460386A1 Membrane for hydraulically driven membrane pump
12/08/1991WO1991019099A1 Apparatus for repetitively dispensing a measured volume of liquid
12/08/1991WO1991019096A1 A fluid valve device and a positive-displacement pump
12/08/1991CA2084681A1 Fluid valve device and a positive-displacement pump
12/08/1991CA2084675A1 Apparatus for repetitively dispensing a measured volume of liquid
12/04/1991EP0459113A1 Peristaltic pump and method for adjustable flow regulation
12/03/1991CA1292655C2 Check valve for a parenteral solution delivery system
11/1991
11/28/1991WO1991017780A1 Valve system with removable fluid interface
11/28/1991DE4016391A1 High pressure unit for pressures exceeding 500 bars - has high pressure cylinder filled with fluid with differing viscosity at high pressure to average pressure hydro-fluid
11/28/1991DE4016300A1 Hydro-membrane pump assembly - has drive of work piston activated by double-acting hydraulic cylinder
11/26/1991US5067879 Peristaltic pump system
11/20/1991CN2089081U Fueller for car
11/19/1991US5066204 Diaphragm pump
11/19/1991US5065978 Valve arrangement of microstructured components
11/13/1991EP0456540A1 Dosingpump
11/13/1991EP0456387A1 Fluid pump drive mechanism
11/13/1991EP0455696A1 Positive-displacement pump.
11/12/1991US5064358 Peristaltic pump adapted to operate simultaneously on two lines
11/12/1991US5064353 Pressure responsive linear motor driven pump
11/08/1991CA2041738A1 Fluid pump drive mechanism
11/06/1991CN2088177U Negative-pressure corrugated oil suction pipe pump
11/05/1991WO1991016933A1 Disposable infusion apparatus with peristaltic pump
11/05/1991US5062775 Roller pump in an extra corporeal support system
11/05/1991US5062774 Solution pumping system including disposable pump cassette
11/05/1991US5062770 Fluid pumping apparatus and system with leak detection and containment
11/05/1991CA2040326A1 Peristaltic pump and method for adjustable flow regulation
10/1991
10/31/1991WO1991016542A1 Peristaltic pump with retractable pressing members
10/31/1991DE4036696A1 Membrane pump working as displacement pump - has seat controlled valve acting as leakage replenishment and excess pressure indicator
10/30/1991EP0454353A1 Means and method of pumping fluids particularly biological fluids
10/30/1991EP0453532A1 Micropump with improved priming.
10/29/1991US5061156 Bellows-type dispensing pump
10/26/1991WO1991016091A1 Programmable valve pump
10/24/1991DE4012268A1 Pump for electro-viscous fluid - has three or more serial field zones producing travelling field variation in fluid
10/22/1991US5058669 Extraction system with a pump having an elastic rebound inner tube
10/17/1991WO1991013338A3 Biorheological measurement
10/15/1991US5057081 Peristaltic infusion device
10/15/1991US5056992 IV pump and disposable flow chamber with flow control
10/08/1991US5055013 Apparatus for injecting fluids
10/08/1991US5055007 Over-ride valve assembly for air operated double diaphragm pumps
10/08/1991US5055001 Volumetric pump with spring-biased cracking valves
10/08/1991CA1290211C Enhanced pressure measurement flow control system
10/02/1991EP0449686A1 Telescopic mobile equipment for driving a reciprocating pump
10/02/1991EP0448937A2 Hose pump
10/02/1991EP0448909A1 Assembling device for a tube on a peristaltic pump
10/02/1991EP0448592A1 Fluid flow control apparatus.
10/02/1991CN1055042A Dual-diaphragm pump
10/02/1991CN1014166B Pulsating work cavity
10/01/1991US5052900 Pressure relief valve for positive pressure pumps
10/01/1991US5052276 Diaphragm construction
09/1991
09/30/1991CA2038805A1 Telescopic moving part for reciprocating pump driving
09/25/1991EP0447985A1 Positive displacement pump
09/25/1991EP0447909A1 Portable pump for the administration of therapeutic liquids
09/25/1991CN2085431U Pump with aerocyst hose
09/19/1991WO1991014100A1 Peristaltic and especially monosatellite pump
09/19/1991WO1991014099A1 Double-membrane pump
09/19/1991DE4008459A1 Doppelmembranpumpe Double diaphragm pump
09/19/1991DE4007932A1 Long service life diaphragm pump
09/18/1991EP0446898A2 A spring biased valve for use in a positive displacement volumetric pump
09/18/1991EP0446897A2 Volumetric pump with spring-biased cracking valves
09/18/1991EP0258424B1 Intravenous line valving system
09/17/1991US5049141 Programmable valve pump
09/17/1991US5049048 Hose pump
09/17/1991US5049047 Infusion pump with means for measuring the tube internal diameter
09/16/1991CA2038314A1 Sensor for detecting fluid flow from a positive displacement pump
09/16/1991CA2038287A1 Spring biased valve for use in a positive displacement volumetric pump
09/16/1991CA2038286A1 Volumetric pump with spring-biased cracking valves
09/11/1991EP0445387A1 Linear hose pump
09/11/1991CN2084524U Moving-coil electromagnetic diaphragm pump
09/10/1991US5047014 Medical pump device
09/05/1991WO1991013338A2 Biorheological measurement
09/05/1991WO1991013255A1 Micro-miniaturised pump
09/05/1991DE4006470A1 High pressure reciprocating piston pump with two pistons - has system to eliminate pressure troughs in output flow, caused when alternately operating pistons reverse
09/03/1991US5045051 Leak detector
09/03/1991US5044902 Cartridge for peristaltic pump with a flexible tube, and peristaltic pump fitted with such a cartridge
09/03/1991US5044901 Pulsatile pump for extra-corporeal circulation
09/03/1991US5044891 Variable displacement diaphragm pump
08/1991
08/29/1991DE4006152A1 Mikrominiaturisierte pumpe Microminiaturized pump
08/28/1991EP0300012B1 Improved total heart prosthesis
08/28/1991CN1054119A Micropump and manufacturing method therefor
08/24/1991CA2036182A1 Peristaltic pump
08/21/1991CN2083205U Portable oil suction pipe
08/21/1991CN2083204U Hand liquid pump
08/20/1991US5041132 Blood pump
08/20/1991US5040955 Peristaltic pump having inflatable pumping members
08/14/1991EP0441681A1 Improvement in a diaphragm failure detection device for a double diaphragm pump
08/13/1991US5039279 Sensor for detecting fluid flow from a positive displacement pump
08/13/1991CA1287549C Anti-stall ball-check valve
08/08/1991WO1991011616A1 Improved system for pumping fluid
08/08/1991DE4003101A1 High pressure aggregate for cutting by jets of water - makes use of markings on pistons detectable by sensors
08/07/1991EP0440320A1 Pumping system
08/06/1991US5037274 Peristaltic apparatus and method for pumping and/or metering fluids
07/1991
07/31/1991EP0439327A1 A system and method for controlling a micro-pump
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