Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04B - Positive-displacement machines for liquids; Pumps › F04B 9 - Piston machines or pumps characterised by the driving or driven means to or from their working members
Patents for F04B 9 - Piston machines or pumps characterised by the driving or driven means to or from their working members (9,236)
11/1990
11/14/1990CN2065680U Sleeve tube submerged hand-press pump for oil tank
11/07/1990WO1990013743A1 Peristaltic pump
11/07/1990CN2065251U New-type pocket inflator
11/07/1990CN2065250U Inflator clip
11/07/1990CN1046788A Manual piston-free water compressor
10/1990
10/31/1990EP0394356A1 Improved fluid-driven pump
10/31/1990CN2064831U Elastic soft piston hand water pump
10/30/1990US4966708 Controlling reverse osmosis water purification system
10/30/1990US4966535 Non-return valve for admitting a liquid to be sprayed into a pump chamber, and utilization thereof
10/30/1990CA1275575C Systems which use an absorption refrigeration cycle
10/24/1990CN2064427U Small-size liquid transporting device
10/24/1990CN2064426U Piston type men-power water raising engine
10/24/1990CN2064425U Gasoline pump
10/24/1990CN2064424U Lever type liquid transporting pump
10/23/1990US4964985 Liquid chromatograph
10/23/1990US4964473 Method for driving a hydraulic submerged tool
10/18/1990DE4010938A1 Pressure supply to vehicle servo system - makes use of combustion gas from Diesel engine
10/16/1990CA1275199C Constant suction pump for high performance liquid chromatography
10/16/1990CA1275181C Fluid means for data transmission
10/11/1990DE3911278A1 Plunger pump
10/10/1990EP0205569B1 Mud pump
10/10/1990CN2063582U Siphon and negative pressure combined liquid sucker
10/09/1990US4961694 Lever arm pump
10/04/1990WO1990011449A1 Control arrangement for a two-cylinder pump for thick materials
10/03/1990EP0389785A2 Two-cylinder-slurrypump with piston-accumulator
10/03/1990CN2063172U Multifunction lever pump
09/1990
09/29/1990CA2013356A1 Two cylinder solids handling pump with piston reservoir
09/26/1990EP0389414A1 Piston compressor
09/25/1990CA1274492A1 Continuous discharge dispenser
09/13/1990DE4001815A1 High-pressure reciprocating pump - is used in vehicle and uses fluid motor to drive control valve
09/12/1990EP0386610A1 Constant output pump
09/12/1990EP0281794B1 Liquid piston pump driven by a compressed-air piston engine
09/12/1990CN2061979U Miniature inflator
09/11/1990US4955792 Drive for a lubrication pump
09/07/1990CA2011441A1 Constant output pump
09/05/1990EP0385933A2 Breast pump
09/05/1990CN2061618U Durable bicycle pump
09/05/1990CN2061617U Hand-operated water-lifting pump
09/05/1990CN2061616U Manual-driven piston-type water pump
09/05/1990CN1045161A Treadle submersible pump
08/1990
08/26/1990WO1990009920A1 Apparatus for and method of managing liquid under pressure
08/23/1990DE3905104A1 Liquid pump
08/22/1990EP0383546A2 Fuel injection pump
08/22/1990EP0308468B1 Hydraulic manually-operated single-piston pump
08/22/1990CN2060822U Apparatus for supplying fuel to automobile
08/22/1990CN2060821U Inflater being able to drawing air
08/15/1990CN2060480U Oil pumping apparatus for automotive vehicle
08/15/1990CN2060479U Manual transfer pump
08/15/1990CN2060478U Domestic energy-saving pump
08/14/1990US4947491 Pump
08/08/1990EP0381034A1 Variable positive fluid displacement apparatus with movable chambers
08/08/1990EP0380777A1 Positive-displacement pump for pumping alimentary liquids
08/08/1990CN2060185U Piston type hand water pump
08/07/1990WO1990008896A1 Self-reversing reciprocating piston pump with hydraulic transmission of the inversion signal
08/07/1990US4946355 Orbital pump
08/07/1990US4946352 Dual action piston pump
08/07/1990CA2026986A1 Autoreversing alternating piston pump having hydraulically transmitted reversing signal
08/03/1990CA2004785A1 Variable positive fluid displacement apparatus with movable chambers
07/1990
07/31/1990CA1272167A1 Manual liquid dispenser
07/31/1990CA1272069A1 Apparatus for and method of pumping output fluids such as abrasive liquids
07/26/1990DE3941442A1 Liquid pump driven by electric motor for medium and high pressures - has single shaft for pump and electric motor e.g. for car washing
07/25/1990CN1008930B Pumps
07/24/1990US4943004 Actuator for a fuel injector
07/18/1990EP0378434A2 Compact pulsing pump for irrigation handpiece
07/18/1990CN2059460U Automatic pressure-fixing air pump
07/17/1990US4941595 Spray pump
07/13/1990CA2007675A1 Compact pulsing pump for irrigation handpiece
07/11/1990EP0377536A1 Check valve for introducing a liquid to be sprayed to a pump chamber, and its use
07/11/1990CN2059187U Foot drainage pump
07/10/1990CA1271457A1 Discharge valve control for viscous product dispenser
07/04/1990CN2058938U Manual liquid pump
07/04/1990CN2058937U Multi-purpose oil pump
07/03/1990CA1271085A1 Fluid pressure intensifier
06/1990
06/27/1990EP0374348A2 Improved precompression pump, for dispensing liquid products from vessels
06/20/1990CN1008424B Manually operated trigger type dispenser
06/19/1990US4934995 Blood component centrifuge having collapsible inner liner
06/14/1990WO1990006445A1 Non-icing quiet air-operated pump
06/14/1990WO1990006444A1 Process and device for control of a twin-cylinder thick matter pump
06/12/1990US4932847 Apparatus for transmitting pressure from a hydraulic fluid to a material having solid particles suspended in a liquid medium
06/12/1990US4932569 Device, particularly for a hand pump, for delivering a predetermined quantity of thick or liquid substances contained in bottles
06/07/1990DE3840892A1 Verfahren und vorrichtung zur steuerung einer zweizylinder-dickstoffpumpe Method and device for controlling a two-cylinder thick fuel pump
06/05/1990US4932005 Fluid means for data transmission
06/05/1990US4930999 Precompression metering pump with improved priming
06/05/1990US4930991 Piston pump for high performance liquid chromatography
05/1990
05/31/1990DE3840327A1 Method and device for feeding a hydraulic motor of a booster pump
05/30/1990CN2057705U Hand high-pressure pump
05/30/1990CN2057704U Gear, rack rod driving motion plunger pump
05/29/1990US4928656 Fuel-injection pump with variable cylinder capacity for diesel engine injection systems
05/28/1990CA2003976A1 Non-icing quiet air-operated pump
05/23/1990EP0369623A1 Fluid compressors
05/23/1990EP0369568A1 Dispensers for viscous materials
05/23/1990CN2057467U Air exhaust pressure-plate type grease pump
05/23/1990CN2057466U Manual high-pressure water-spraying oil pumping device
05/22/1990US4927335 Pump for transferring liquids, in particular beer or carbonated beverages
05/17/1990CA2003111A1 Fluid compressors
05/16/1990CN2057225U Vertical hand-operated pump
05/10/1990DE3837717A1 Drum pump, especially for delivering liquid plastic material during use and processing of two or more plastic components which react with one another
05/09/1990CN2056945U Level-signaling apparauts on water isolating pump
05/08/1990US4923373 Hydraulic single piston pump for manual operation
05/03/1990DE3908280A1 Pump appliance
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