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)
06/2003
06/18/2003DE20302318U1 Hand-operated water pump for garden use has frost period water drain
06/17/2003US6579073 Motor-pump assembly
06/12/2003WO2003047658A1 Rotating compressor
06/11/2003CN2555418Y Liquid compenstaor
06/10/2003US6575709 Pumps
06/05/2003US20030104634 Fluid dispensing algorithm for a variable speed pump driven metering system
06/05/2003US20030102332 Pump provided with a decompression device
06/04/2003EP1316869A2 Improvements in or relating to a fluid metering system
06/04/2003EP1316740A2 One way clutch assembly
06/04/2003EP1316452A2 Vehicular rotational apparatus
06/04/2003EP1316451A2 Vehicular rotational apparatus
06/04/2003EP1315575A1 Finger-operated spray pump ejaculating fluid in fixed quantity
05/2003
05/30/2003WO2003044817A1 Circuit switching switch
05/29/2003US20030099556 Double-acting hydraulic pressure intensifier
05/29/2003US20030098624 Vehicular rotational apparatus
05/29/2003US20030098216 One-way clutch assembly and one-way power transmission clutch unit with the same
05/29/2003US20030098186 Vehicular rotational apparatus
05/29/2003US20030097924 Hydraulic pressure intensifier
05/28/2003EP1313948A2 Reciprocating motor with unidirectional fluid flow
05/28/2003EP1165247B1 Suction pump
05/28/2003EP1135614B1 Releasable check valve for very high system pressures
05/28/2003EP0734494B2 Reciprocating pump for pumping hydraulic fluid
05/28/2003CN2553135Y Natural gas micro-injection pump
05/28/2003CN2553134Y Wind-force hydraulic pump
05/28/2003CN1109819C Series pump with auxiliary pump.
05/27/2003US6568911 Compressor arrangement
05/22/2003WO2003042534A2 Pump element and piston pump for generating high fuel pressure
05/20/2003US6565333 Fluid discharge apparatus and fluid discharge method
05/20/2003US6564739 Marine steering system having dual hydraulic and electronic output
05/15/2003WO2003039756A2 Fluid product dispensing pump
05/15/2003WO2002044075B1 Fluid delivery device
05/15/2003US20030089343 Fuel pump and direct fuel injection engine
05/15/2003US20030088909 Toilet bowl pump apparatus, and method of reducing the water level in a toilet bowl
05/15/2003DE20200372U1 Piston pump for thick substances has piston and cylinder unit, feed unit, pressure line for substance under pressure and reversing valve with valve component movable in housing
05/15/2003DE10142107C1 Fluid pump, for use in mining and chemical industry, has piston mounted on pneumatic muscles which increase in diameter and decrease in length when pressure fluid is fed into them, moving piston
05/14/2003EP1310672A2 Fuel pump for a fuel system of an internal combustion engine and fuel system
05/14/2003EP1310577A1 Fuel pump and direct fuel injection engine
05/14/2003CN2550527Y 双腔高压泵 Dual-chamber pressure pump
05/08/2003US20030086794 System for regulating fluid pump pressures
05/07/2003EP0918931B1 Electromotor/pump assembly
05/07/2003CN2549198Y Well water pump
05/07/2003CN2549197Y Water-energy self backflow device
05/07/2003CN1107804C Volumetric pump with sterility seal
05/06/2003US6558537 Portable hydration system
05/06/2003US6558142 High-pressure hydraulic fuel pump
05/06/2003US6558138 Manual/pneumatic oil-pumping device
05/06/2003US6558134 Fluid intensifier pump system
05/06/2003US6558128 Fluid well pumping system
05/02/2003EP1306551A2 Method and apparatus for supplying coating material
05/02/2003EP1305254A1 Manually actuated pump assembly
05/02/2003EP0723624B1 Reciprocable device
05/01/2003WO2003036086A1 A linear self-adjustable compression pump of variable displacement for power transmission of infinite ratios including a variable geometry crankshaft
05/01/2003US20030080211 Method and apparatus for supplying coating material
05/01/2003US20030080210 Device for producing high pressure in a fluid in miniature
04/2003
04/30/2003CN2547897Y Energy-saving combined pump
04/30/2003CN1107168C Water system with pedal powered reciprocating pump
04/29/2003US6555986 Method and apparatus for detection of occlusions
04/29/2003US6554588 Composite piston for a vibration pump
04/29/2003US6554582 High pressure pump with improved hub
04/24/2003WO2003033909A1 Piston type gas compressor, and piston type gas pressure drive rotation device
04/24/2003US20030075567 Bellows pump for delivery of liquids
04/23/2003EP1303700A1 Thick matter pump
04/22/2003US6550971 Eccentric system
04/22/2003US6550250 Process for the reduction of SCR NOx emissions and apparatus therefor
04/17/2003WO2003032092A1 Planarizing recess etch
04/17/2003WO2003031819A2 Shaft coupling and shifting mechanism for pneumatic pump drive
04/17/2003US20030071079 Multiple use hand operated piston pump
04/17/2003CA2460385A1 Shaft coupling and shifting mechanism for pneumatic pump drive
04/16/2003CN2545389Y Valveless rotor radial reciprocating pump
04/16/2003CN1410670A Energy saving multipurpose pump
04/15/2003US6546917 Variable delivery fuel supply device
04/10/2003US20030068244 Pump for printing press
04/10/2003US20030068241 Shaft coupling and shifting mechanism for pneumatic pump
04/09/2003EP1300242A2 Pump for printing press
04/09/2003EP1299646A1 Dosing pump
04/09/2003EP1299644A1 Hydraulic transformer
04/09/2003CN2544114Y Double-action double-displacement hydraulic manual pump
04/09/2003CN1409006A ABC serially connected automatically prizing and pressing device
04/09/2003CN1104964C Low capacity pump with enhanced compatibility
04/08/2003US6543649 Child-resistant liquid dispenser
04/03/2003US20030065284 Uninterrupted flow pump apparatus and method
04/02/2003EP0925449B1 Radial piston pump with a closed one-sided bearing shell
04/02/2003CN1104262C Device for dispensing liquid and method for providing liquid beads
03/2003
03/27/2003WO2003025398A1 Water-powered sump pump
03/27/2003WO2003024667A2 Oilless air motor assembly for hydraulic pumps
03/27/2003WO2003024504A2 Plunger for patient infusion device
03/27/2003US20030059321 Tappet turning-prevention structure for fuel supply apparatus
03/27/2003US20030059311 Pump
03/27/2003CA2459952A1 Plunger for patient infusion device
03/26/2003EP1090227B1 Eccentric system
03/26/2003CN2541625Y Multi-cylinder dual-function rotor type radial reciprocating pump
03/25/2003US6537039 Hydraulic drive portable air compressor system
03/25/2003US6537038 Supply pump having a variable drive gear unit
03/25/2003CA2187579C Pump drive head backspin retarder
03/20/2003WO2003023226A1 Electronic control system and process for electromagnetic pump
03/20/2003US20030055380 Plunger for patient infusion device
03/20/2003US20030053917 Oilless air motor assembly for hydraulic pumps
03/19/2003EP1293668A2 Axial piston pump with rocker cam counterbalance feed
03/19/2003CN2540520Y Reciprocating liquid feeding pump without pulse output
03/19/2003CN2540519Y Plunger high-pressure water pump
1 ... 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 ... 93