| 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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| 08/12/1998 | CN1190024A Measure apparatus for medical liquid |
| 08/05/1998 | EP0856661A2 Fuel pump |
| 08/05/1998 | EP0856323A2 Medical liquid metering device |
| 08/04/1998 | CA2123688C Double acting simplex plunger pump |
| 07/30/1998 | WO1998032528A1 Pulsed compression of gas |
| 07/30/1998 | DE19727623C1 Method for guiding fluids using pump system comprising two individually oscillating drainage pumps |
| 07/30/1998 | DE19702763A1 Procedure for conveying of bulk material |
| 07/29/1998 | EP0855549A1 Single-acting manual pump for a lubrication line, with deformable valve element |
| 07/29/1998 | EP0855507A2 Volumetric pump with bi-directional sphincter seal apparatus and method |
| 07/29/1998 | EP0854994A1 Operating air control valve |
| 07/29/1998 | EP0854685A1 Rear entry stepped pump |
| 07/28/1998 | US5785506 Liquid feeding pump |
| 07/23/1998 | DE19755678A1 Pump device |
| 07/22/1998 | EP0854236A1 Metering pump drive for a road marking vehicle |
| 07/22/1998 | EP0853501A1 Device of miniaturised construction for producing high pressure in a fluid to be atomised |
| 07/22/1998 | EP0734494B1 Reciprocating pump for pumping hydraulic fluid |
| 07/21/1998 | US5782160 Adjusting member for limiting maximum yoke angle in a hydraulic pump |
| 07/09/1998 | DE19716414C1 High pressure gas supply plant with collector container |
| 07/07/1998 | US5776098 Diaphragm pump and pump mounted in a carrying case useful in breast pumping |
| 07/01/1998 | EP0851120A2 Piston pump, in particular a radial-piston pump for internal combustion engine fuel |
| 06/30/1998 | US5772899 Hydraulic fluids pumped by cylinder/piston/stepper assemblies independently actuate each of the diaphragm pumps, providing accurate, controllable and repeatable dispensing |
| 06/30/1998 | US5772410 Linear compressor with compact motor |
| 06/30/1998 | US5772405 Water system with a pedal powered reciprocating pump |
| 06/30/1998 | US5771693 Gas compressor |
| 06/23/1998 | US5769616 Submerged pump with coaxial opposing pistons, driven by double lobed camshaft |
| 06/23/1998 | US5769614 High pressure pump |
| 06/23/1998 | US5769611 Hydraulic pressure supply pump with multiple sequential plungers |
| 06/23/1998 | US5769321 Yoke support for piston paint pumps |
| 06/23/1998 | CA2132044C Pneumatically actuated lubricant pump |
| 06/18/1998 | WO1998026180A1 Diaphragm pump with integrated magnetic valve for vacuum cleaner |
| 06/18/1998 | DE19652298A1 Car body deep-drawing press pump with primary-loaded pistons |
| 06/17/1998 | EP0774072B1 Reciprocating pump |
| 06/17/1998 | EP0729548B1 Hydraulic pump |
| 06/16/1998 | US5765375 Waterpower machine |
| 06/16/1998 | US5765374 Method for converting energy of an expanding gas into mechanical work |
| 06/11/1998 | WO1998025028A1 Reciprocating piston pump |
| 06/10/1998 | EP0846226A1 Reciprocating machine |
| 06/10/1998 | EP0846007A1 Diaphragm pump and pump mounted in a carrying case useful in breast pumping |
| 06/10/1998 | DE19650276A1 Hubkolbenpumpe Reciprocating pump |
| 06/10/1998 | DE19650275A1 Piston pump driven by electric motor especially for radial piston pumps |
| 06/09/1998 | US5762480 Reciprocating machine |
| 06/09/1998 | CA2152147C Pre-compression manual pump for spraying a liquid and dispensing assembly equipped with such pump |
| 06/04/1998 | DE19720615C1 Pump unit for slip-regulated automobile braking system |
| 06/03/1998 | EP0729435A4 Fluid-driven apparatus for dispensing plural fluids in a precise proportion |
| 06/02/1998 | US5759147 Blood separation chamber |
| 06/02/1998 | US5758666 Reciprocating pump with imperforate piston |
| 05/28/1998 | WO1998022202A1 Fluid driven pumps and apparatus employing such pumps |
| 05/28/1998 | CA2272339A1 Fluid driven pumps and apparatus employing such pumps |
| 05/26/1998 | US5755561 Piston pumping system delivering fluids with a substantially constant flow rate |
| 05/26/1998 | US5755559 Apparatus and method for pumping supercritical fluid and measuring flow thereof |
| 05/19/1998 | US5752811 Linear actuator mechanism for converting rotary to linear movement including one end pulley Line attached to the stationary anchor and other end attached to the take-up drum |
| 05/14/1998 | WO1998019796A1 Pump |
| 05/14/1998 | DE19749843A1 Pressure drop compensation for fluid pressure circuit |
| 05/13/1998 | EP0776424A4 Direct action fluid motor and injection pump |
| 05/12/1998 | US5750027 Apparatus and method for supercritical fluid extraction or supercritical fluid chromatography |
| 05/06/1998 | EP0840010A2 Plunger pump |
| 05/06/1998 | EP0839576A2 Syringe pump |
| 05/06/1998 | EP0757587A4 Mixing apparatus for microflow gradient pumping |
| 05/06/1998 | EP0680345A4 Infinitely variable pneumatic pulsatile pump. |
| 05/06/1998 | CN2280779Y Glass pump for potting machine |
| 05/05/1998 | US5746728 Fluid pump without dead volume |
| 05/05/1998 | US5746721 Pulsed lavage pump with integral power source and variable flow control |
| 04/30/1998 | DE19644462A1 Vehicle seat |
| 04/29/1998 | EP0838589A2 Method for automatic compensation of hydraulic drive fluid loss, a leakage compensation circuit and double piston pump comprising said circuit |
| 04/29/1998 | CN1180143A 自动水泵 Automatic Pump |
| 04/22/1998 | EP0836824A2 Method of evacuation |
| 04/16/1998 | WO1998015735A1 Piston pump and method of reducing vapor lock |
| 04/16/1998 | CA2268343A1 Piston pump and method of reducing vapor lock |
| 04/14/1998 | US5738498 Apparatus and method for thermoelectric cooling of an extraction fluid pump |
| 04/14/1998 | US5737920 Means for improving the prevention of icing in air motors |
| 04/09/1998 | WO1998014704A1 Radial piston pump |
| 04/02/1998 | DE19640596A1 Radialkolbenpumpe Radial piston pump |
| 04/01/1998 | EP0833055A2 Liquid pump |
| 03/26/1998 | WO1998011979A1 Motor-driven reverse-osmosis pumping device |
| 03/26/1998 | DE19716030C1 Method of viscous fluid piston pump operation |
| 03/26/1998 | DE19638083A1 Piston sensors for high pressure equipment |
| 03/25/1998 | CN1177424A Electric hydraulic hybrid motor, control device and control method for the motor |
| 03/25/1998 | CN1177423A Electric hydaulic hybrid motor |
| 03/25/1998 | CN1177393A Method and device for feeding concrete or other thick materials |
| 03/19/1998 | DE19637646A1 Hydro-pump unit for slip-regulated road vehicle brake installation |
| 03/18/1998 | EP0829945A1 Electric hydraulic hybrid motor, control device and control method for the same motor |
| 03/17/1998 | US5729629 Handwritten symbol recognizer |
| 03/17/1998 | US5727931 Pump for electrically conductive coating materials |
| 03/12/1998 | WO1998010191A1 Radial piston pump with a closed one-sided bearing shell |
| 03/12/1998 | DE19636508A1 Radialkolbenpumpe mit einseitig geschlossener Lagerschale des Radiallagers Radial piston pump with closed at one end bearing shell of the radial bearing |
| 03/11/1998 | EP0827579A1 Piston with connecting rod |
| 03/11/1998 | EP0620747B1 Self-contained drip apparatus |
| 03/05/1998 | WO1998009075A1 Reciprocating pump |
| 03/05/1998 | WO1998008769A1 Method and device for the production of beverages |
| 03/05/1998 | DE19714100C1 Pump driven by compressed air |
| 03/05/1998 | DE19701130C1 Paint controlled pump drive for road marking machine |
| 03/05/1998 | DE19635164A1 Kolbenpumpe Piston pump |
| 03/03/1998 | US5722930 Reciprocating pump circulatory assist arrangement |
| 03/03/1998 | US5722429 Connecting arrangement for medical device |
| 02/26/1998 | WO1998007985A1 Electromotor/pump assembly |
| 02/25/1998 | CN1174293A Double diaphragm pump |
| 02/19/1998 | WO1998006942A1 Unit consisting of an electric motor and of a working machine driven thereby |
| 02/19/1998 | DE19633169A1 Elektromotor-/Pumpenaggregat Electric motor / pump unit |
| 02/18/1998 | EP0824192A2 Fluid driven double diaphragm pump |
| 02/18/1998 | CN1173912A Adjustable hydrostatic pump |