| Patents for F04B 9 - Piston machines or pumps characterised by the driving or driven means to or from their working members (9,236) |
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| 05/13/2004 | US20040091378 Mechanical bladder pump |
| 05/13/2004 | US20040091363 Hydraulic multiphase pump |
| 05/13/2004 | US20040089146 Pump element and piston pump for generating high fuel pressure |
| 05/13/2004 | DE10349222A1 Pumpvorrichtung Pumping device |
| 05/12/2004 | EP1418003A1 Microfluidic pumping system |
| 05/12/2004 | CN2615367Y Hand-operated pump |
| 05/12/2004 | CN2615366Y Planet wheel double-acting hydraulic apparatus |
| 05/11/2004 | US6733253 Hydraulic air compressor having an automatic water valve regulation mechanism |
| 05/06/2004 | WO2004038220A1 Fluid supply unit, in particular hydraulic supply unit |
| 05/06/2004 | US20040086400 Fluidic pumping system |
| 05/06/2004 | US20040085215 Method and apparatus for detecting errors, fluid pressure, and occlusions in an ambulatory infusion pump |
| 05/06/2004 | EP1415092A1 High pressure feed pump |
| 05/06/2004 | EP1216104B1 Improved pump for dispensing fluid product,and fluid product dispensing device comprising same |
| 05/06/2004 | DE202004000470U1 Vehicle's continuously variable transmission has compressor which directs force via piston, connecting rod and adjusting device upon one-sided lever arm rotatably mounted by one side on fixed point |
| 05/06/2004 | DE10249558A1 Radial piston pump has annular spring in form of polygon progression fitted between slide rings and with length of broken flank shorter than length of each unbroken flank |
| 05/05/2004 | CN2614276Y 气压式化学材料灌浆泵 Pneumatic chemical materials grout pump |
| 05/04/2004 | US6729860 Pneumatically driven liquified gas booster pump |
| 05/04/2004 | US6729500 Twirling dip tube |
| 04/30/2004 | CA2444525A1 Fluidic pumping system |
| 04/29/2004 | WO2004035228A2 Paste ejection apparatus |
| 04/29/2004 | DE10242116B3 Drive device for a pump element, especially for hydraulic units in motor vehicle braking systems, comprises a driven shaft, an eccentric element connected to the shaft, and a roll element |
| 04/28/2004 | EP1413750A2 Pilot control valve for reciprocating pump |
| 04/28/2004 | EP1412639A1 Dosing pump |
| 04/28/2004 | EP0958040B1 Process for conveying materials and device for implementing it |
| 04/27/2004 | US6726458 High pressure pump with filler plug |
| 04/27/2004 | US6726124 Device for producing high pressure in a fluid in miniature |
| 04/27/2004 | US6726064 Pump for dispensing a substance, in particular a cosmetic or a care product |
| 04/22/2004 | US20040076531 Circuit changeover switch |
| 04/22/2004 | US20040076526 Pump apparatus |
| 04/22/2004 | US20040074468 Drive shaft coupling device |
| 04/22/2004 | US20040074383 Pilot control valve utilizing multiple offset slide valves |
| 04/21/2004 | EP1409871A1 Liquid dispensing device |
| 04/21/2004 | CN2612816Y High-pressure plunger slurry pump |
| 04/20/2004 | US6722866 Pump system for delivering cryogenic liquids |
| 04/20/2004 | US6722259 Fluid machinery |
| 04/15/2004 | WO2004018873A3 Two stage double acting hydraulic/gas compressor |
| 04/15/2004 | US20040069801 Paste ejection apparatus |
| 04/14/2004 | EP1185482A4 Thermal actuator shaped for more uniform temperature profile |
| 04/14/2004 | CN2611634Y Power spraying and cleaning pump with ceramic plunger and without needing grease |
| 04/14/2004 | CN2611625Y Piston type water pump |
| 04/13/2004 | US6719542 Pump for printing press |
| 04/13/2004 | US6719538 Rotating apparatus |
| 04/08/2004 | WO2003047658B1 Rotating compressor |
| 04/08/2004 | WO2002044075A9 Fluid delivery device |
| 04/08/2004 | DE19939130B4 Axialkolbentriebwerk mit einem stufenlos verstellbaren Kolbenhub With a continuously variable axial piston stroke |
| 04/07/2004 | EP1406020A2 Vibrating pumping stage for vacuum pumps, and vacuum pump with vibrating pumping stages |
| 04/07/2004 | EP1286783B1 Bellows pump for delivery of liquids |
| 04/07/2004 | EP1163448A4 Fuel injection pump and snubber valve assembly |
| 04/07/2004 | CN1488036A 高压水泵 High pressure pumps |
| 04/07/2004 | CN1487195A Multi-component metering & dispensing system |
| 04/07/2004 | CN1144950C Diaphram pump |
| 04/06/2004 | US6716002 Micro pump |
| 04/06/2004 | US6715649 Bellows pump for delivery of liquids |
| 04/01/2004 | US20040061583 Linear actuator and a pump apparatus and compressor apparatus using same |
| 04/01/2004 | DE10304982B3 Hand-operated hydraulic pump for an elevating truck for lifting palettes or similar loads has a hydraulic connecting line arranged between the pump handle and a hole in a housing |
| 04/01/2004 | DE10116450B4 Brennstoff-Versorgungsvorrichtung mit variabler Zuführung Fuel supply apparatus with variable feed |
| 03/31/2004 | EP1403518A2 Microfluidic device made at least partially of an elastic material |
| 03/31/2004 | CN2608720Y 泵系统 Pump Systems |
| 03/31/2004 | CN2608719Y Pedal multipurpose pump |
| 03/31/2004 | CN1486412A Fluid delivery device |
| 03/30/2004 | US6712587 Hydraulic amplifier pump for use in ultrahigh pressure liquid chromatography |
| 03/30/2004 | US6712365 Over-molded gland seal |
| 03/30/2004 | US6712243 Diaphragm pump |
| 03/25/2004 | WO2004024218A1 Device for the dosed discharge of a liquid agent and infusion pump |
| 03/25/2004 | US20040057853 Master/slave pump assembly employing diaphragm pump |
| 03/25/2004 | US20040056050 Pump dispenser having an improved discharge valve |
| 03/25/2004 | US20040055458 Reciprocating compressor with a linear motor |
| 03/24/2004 | EP1071880B1 Ignition control device and method |
| 03/18/2004 | WO2004022975A1 Pump, especially for a fuel injection device for an internal combustion engine |
| 03/18/2004 | US20040052657 Micromachined fluidic device and method for making same |
| 03/18/2004 | DE10240165A1 Dispensing unit for use in infusion pumps comprises reservoir for infusion liquid fitted with spring-loaded piston, toothed wheel cooperating with locking bar to prevent piston moving |
| 03/18/2004 | DE10233358B3 Regelverfahren zum Druckaufbau mittels Druckübersetzern, insbesondere zum Prüfen der Druckfestigkeit von Rohren Control method for pressure build-up by means of pressure intensifiers, especially for testing the compressive strength of tubes |
| 03/17/2004 | EP1398518A2 Drive shaft coupling device with oil supply |
| 03/17/2004 | CN2606811Y Plunger type high precision micro injection pump |
| 03/17/2004 | CN1483118A Pneumatic motor assembly for a lubricant pump |
| 03/16/2004 | US6706439 Pressure driven hermetically sealed pump for fuel cell system |
| 03/16/2004 | US6705297 Fuel pump for an internal combustion engine |
| 03/11/2004 | US20040047747 Pneumatically driven hydraulic pump |
| 03/11/2004 | US20040045431 Roller bearing, piston pump and pump unit |
| 03/11/2004 | US20040045429 Pneumatic motor assembly for a lubricant pump |
| 03/11/2004 | DE10239728A1 Pumpe, insbesondere für eine Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine Pump, in particular for a fuel injection device for an internal combustion engine |
| 03/10/2004 | CN2606197Y Reciprocating piston water pump |
| 03/04/2004 | WO2004018873A2 Two stage double acting hydraulic/gas compressor |
| 03/04/2004 | US20040042907 Ram pump |
| 03/04/2004 | US20040040986 Multiple component metering and dispensing system |
| 03/03/2004 | EP1393928A2 Multiple component metering and dispensing system |
| 03/03/2004 | EP1392977A1 Micropump |
| 03/03/2004 | CN1479437A Linear motion executive component and pump device and air compression device using the cornponent |
| 03/02/2004 | US6699213 Diaphragm pump protection device for a breastpump |
| 02/29/2004 | CA2439052A1 Improved ram pump |
| 02/26/2004 | WO2004016947A1 Energy recycling pump |
| 02/26/2004 | US20040037722 Dual reciprocating bellows pump |
| 02/26/2004 | DE10236853A1 Radial piston pump for a slippage-controlled brake installation in motor vehicles has a retaining body with working pistons protruding into a crank chamber and a drive shaft to drive the pistons |
| 02/25/2004 | EP1390607A1 Central lubricating unit |
| 02/25/2004 | CN2604536Y Water pump with wave as dynamic power |
| 02/25/2004 | CN1139740C Lubricant oil pump device |
| 02/24/2004 | US6695590 Lubricant pump having piston with radial through opening |
| 02/24/2004 | US6695176 Pump dispenser having an improved discharge valve |
| 02/24/2004 | US6694952 High-pressure fuel pump and cam for high-pressure fuel pump |
| 02/24/2004 | US6694862 Accessible hand pump |