| 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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| 02/12/1998 | WO1998005860A1 Fuel pumping device for two-stroke engines with an additional driving unit |
| 02/12/1998 | DE19706818C1 Pneumatically actuated hydraulic pump |
| 02/12/1998 | DE19632167A1 Aggregat, bestehend aus einem Elektromotor und einer von diesem angetriebenen Arbeitsmaschine Unit consisting of an electric motor and a shaft driven by this working machine |
| 02/12/1998 | CA2262522A1 Fuel pumping device for two-stroke engines with an additional driving unit |
| 02/11/1998 | EP0823023A1 Double-acting pump |
| 02/11/1998 | CN1172697A Constant rate discharge apparatus and method |
| 02/05/1998 | DE19728179A1 Automatically switched piston-cylinder drive for volumetric dispenser |
| 02/05/1998 | DE19645393C1 Pump for flowable media, particularly cosmetic pump |
| 02/05/1998 | DE19631287A1 Kraftstoffpumpvorrichtung für Zweitaktmotoren mit einer zusätzlichen Antriebseinheit Fuel pumping apparatus for two-stroke engines with an additional drive unit |
| 02/03/1998 | US5713723 Volumetric hand pump |
| 01/22/1998 | WO1998002660A1 Actuator pump utilizing travel guides |
| 01/22/1998 | WO1998002659A1 Double acting pneumatically driven rolling diaphragm pump |
| 01/22/1998 | WO1998002658A1 Dosing pump with magnetic control |
| 01/22/1998 | DE19622266C1 Arbeitsluft-Steuerventil Working air control valve |
| 01/20/1998 | US5710401 Volumetric pump/valve |
| 01/14/1998 | CN2272497Y Double-speed hydraulic oil pump |
| 01/13/1998 | US5707217 Pressure transfer modules |
| 01/08/1998 | DE19626938A1 Star-shaped piston cylinder assembly e.g. radial piston pump |
| 01/07/1998 | EP0817356A1 Electric hydraulic hybrid motor |
| 01/07/1998 | EP0816672A2 High-pressure pump for use in fuel injection system for diesel engine |
| 01/06/1998 | US5704519 Dosaging device which can be used on different containers |
| 01/02/1998 | DE19625686A1 Eccentric arrangement, particularly for stroke piston pump |
| 12/30/1997 | US5702430 Surgically implantable power supply |
| 12/29/1997 | EP0813654A1 Pump for conveying a medium |
| 12/24/1997 | CN1168715A Hydrolic pump using shape memory alloys |
| 12/23/1997 | US5699715 Piston for a reciprocating piston machine |
| 12/16/1997 | US5697530 Precompression pump sprayer |
| 12/11/1997 | WO1997046819A1 Operating air control valve |
| 12/11/1997 | WO1997046805A1 Pressure transfer modules |
| 12/11/1997 | WO1997034082A3 Fluid flow turbine with planetary linked paddles |
| 12/10/1997 | EP0811121A1 Apparatus and method for batch-wise continuous pumping |
| 12/10/1997 | CN1167215A Plunger lock-up dispenser |
| 12/04/1997 | DE19722688A1 Compressor, e.g. for use in automobile air conditioning |
| 12/04/1997 | DE19622128A1 Dispensing pump for beverage carton |
| 12/03/1997 | EP0810037A2 Liquid pump dispenser |
| 12/03/1997 | EP0809520A1 Pulsed lavage pump |
| 12/03/1997 | EP0689645B1 Portable, battery operated air pump |
| 12/03/1997 | CN2269476Y Hand operated water pump |
| 12/02/1997 | US5693091 Artificial heart and method of maintaining blood flow |
| 11/26/1997 | EP0808422A1 Process and device for feeding concrete or other thick materials |
| 11/26/1997 | EP0808421A1 Adjustable hydrostatic pump |
| 11/26/1997 | EP0808183A1 Artificial heart driving device |
| 11/26/1997 | EP0698183B1 Electromotor-pump assembly |
| 11/25/1997 | US5690828 Automatic analysis |
| 11/20/1997 | WO1997043549A1 Volumetric hand pump |
| 11/20/1997 | WO1997043548A1 Hydraulic pressure control system for a pump |
| 11/20/1997 | WO1997043545A1 Reciprocating cam actuation mechanism for a pump |
| 11/20/1997 | CA2254360A1 Hydraulic pressure control system for a pump |
| 11/19/1997 | CN2268128Y Simple double-function bicycle inflator |
| 11/13/1997 | WO1997042410A1 Disposable ambulatory microprocessor controlled volumetric pump |
| 11/11/1997 | US5685462 Extruding apparatus with improved drive system |
| 11/04/1997 | US5683230 Pressure medium driven device performing linear motion |
| 10/29/1997 | EP0803670A2 Delayed check-throttle valve and a fluid spraying device using said valve |
| 10/29/1997 | EP0803295A2 Pump dispenser |
| 10/29/1997 | EP0710328B1 Continuous conveying process and device for shear-sensitive fluids |
| 10/23/1997 | WO1997039514A1 Electric motor-pump assembly |
| 10/23/1997 | WO1997039241A1 Reciprocating machine |
| 10/23/1997 | DE19615053A1 Elektromotor-/Pumpenaggregat Electric motor / pump unit |
| 10/22/1997 | EP0801994A2 Pump for electrically conductive coating materials |
| 10/22/1997 | EP0801982A2 Plunger type burette |
| 10/16/1997 | WO1997038224A1 Modular air-driven pump |
| 10/15/1997 | EP0801228A2 Double diaphragm pump |
| 10/14/1997 | US5676651 Surgically implantable pump arrangement and method for pumping body fluids |
| 10/14/1997 | US5676277 Disposable plastic liquid pump |
| 10/14/1997 | US5676162 Reciprocating pump and linear motor arrangement |
| 10/08/1997 | EP0799606A2 Impression tray for fixed dental prosthesis |
| 10/08/1997 | EP0799380A1 Waterpower machine |
| 10/02/1997 | WO1997036105A1 Light two-stage piston pump |
| 10/02/1997 | WO1997035659A1 Process for conveying materials and device for implementing it |
| 10/01/1997 | EP0797860A1 Motor-driven pump unit |
| 10/01/1997 | EP0797733A1 Piston pump |
| 09/25/1997 | DE19611339A1 Verfahren zum Fördern von Werkstoffen und Vorrichtung zur Durchführung des Verfahrens A method for conveying materials and apparatus for performing the method |
| 09/24/1997 | EP0796394A1 Radial piston engine |
| 09/24/1997 | EP0680561B1 Dosing arrangement |
| 09/18/1997 | WO1997034082A2 Fluid flow turbine with planetary linked paddles |
| 09/17/1997 | EP0795085A1 A submerged pump with coaxial opposing modular pistons, operated by double eccentric cams or similar |
| 09/10/1997 | EP0793986A1 Multi-chambered super-critical fluid extraction cartridge and processes using it |
| 09/10/1997 | CN2262109Y High speed valve type plunger pump |
| 09/09/1997 | US5664938 Mixing apparatus for microflow gradient pumping |
| 09/04/1997 | WO1997032127A1 Apparatus for use in a liquid circulation system and method for using said apparatus |
| 08/28/1997 | WO1997031187A1 Unidirectional flow pump with rotary drive |
| 08/28/1997 | WO1997031186A1 Yoke support for piston paint pumps |
| 08/27/1997 | EP0791398A1 Fluid discharge device |
| 08/27/1997 | CN2260899Y Domestic electric air-inflator |
| 08/26/1997 | US5660532 Multiphase piston-type pumping system and applications of this system |
| 08/26/1997 | US5660530 Pump system for biasing seals of a centrifugal pump |
| 08/21/1997 | DE19603333C1 Kolbenpumpe zum dosierten Fördern von fließfähigen Medien Piston pump for the metered feeding of flowable media |
| 08/20/1997 | CN2260178Y Multi-cylinder piston pump |
| 08/12/1997 | US5656034 High-pressure micro-volume syringe pump |
| 08/12/1997 | US5655890 Toy pump device |
| 08/12/1997 | US5655779 Resilient rectangular lip seal arrangement |
| 08/12/1997 | US5655689 Media dispenser having a variable constriction outlet |
| 08/07/1997 | WO1997028371A1 Piston pump for the metered delivery of free-flowing media |
| 08/07/1997 | WO1997027741A1 A device for dosing pesticides or plant nutrients to agricultural sprayers |
| 08/06/1997 | EP0712464B1 Piston pump |
| 08/06/1997 | CN1156114A Precompression pump sprayer |
| 08/05/1997 | US5653885 Apparatus and method for supercritical fluid extraction |
| 07/30/1997 | EP0786595A2 Method and apparatus for pressure processing a pumpable substance |
| 07/30/1997 | EP0786289A2 Precompression pump sprayer |
| 07/30/1997 | EP0733170A4 Bearing assembly with axial retention |