Patents
Patents for F04B 9 - Piston machines or pumps characterised by the driving or driven means to or from their working members (9,236)
02/1985
02/19/1985US4500261 Pump means for pumping a mixture of coarse-grained material and fluid
02/13/1985EP0048737B1 Apparatus for displacing fluid in tubing
02/12/1985US4498354 Automatic lock for two mode piston pump
02/12/1985CA1182433A1 Liquid dispensing pump
01/1985
01/22/1985US4494912 Energy conserving air pump
01/22/1985US4494680 Manually operated dispensing pump
01/22/1985US4494415 Liquid nitrogen pump
01/22/1985CA1181509A1 Pulsation-free volumetric pump
01/15/1985US4493619 Pressure systems for spray liquids
01/15/1985US4493614 Pump for a portable ventilator
01/15/1985CA1180960A1 Combined fluid pressure actuated fuel and oil pump
01/08/1985US4492320 Dispenser with an air pump mechanism
01/08/1985US4492106 Manually actuated hydraulic jack for compressively applying terminals on electric cables and conductors in general
01/02/1985EP0129600A1 A fluid intensifier
01/02/1985CA1180227A Hydrostatic control system for articulate loader
12/1984
12/25/1984US4490096 Pump system for liquid/solid materials with balanced output
12/25/1984US4489890 For dispensing a fluid from a container
12/18/1984US4488853 Fluid pressure ratio transformer system
12/05/1984EP0127449A1 Manual liquid dispenser
11/1984
11/27/1984US4484484 Power transmitting device for an oil well pump
11/20/1984US4483665 Bellows-type pump and metering system
11/07/1984EP0124102A2 Redundant piston pump for the operation of single or multiple chambered pneumatic blood pumps
11/06/1984US4480969 Fluid operated double acting diaphragm pump housing and method
11/06/1984US4480529 Axial piston pump
10/1984
10/31/1984EP0122993A2 Miniature solid-state gas compressor
10/30/1984US4479765 Exhaust gas operated vacuum pump assembly
10/23/1984US4478561 Hydraulic intensifier
10/23/1984US4478560 Fluid-operated reciprocating pump
10/16/1984US4477237 Fabricated reciprocating piston pump
10/16/1984US4477232 Hydraulically actuated reciprocating piston pump
10/09/1984US4475870 Hydraulic arrangement
09/1984
09/25/1984US4473340 Combined fluid pressure actuated fuel and oil pump
09/19/1984EP0118615A1 Pump arrangement in a piston for a linear fluid operated device
09/18/1984US4471886 Device for spraying medicinal liquid
09/18/1984US4471795 Contamination free method and apparatus for transfer of pressure energy between fluids
09/18/1984CA1174519A1 Barrel pump
09/11/1984US4470773 Resilient chamber fluid sampler having vacuum breaker apparatus
09/11/1984US4470771 Quadraplex fluid pump
08/1984
08/29/1984EP0117018A2 Hydraulically actuated reciprocating piston pump and fluid distributing valve for use in it
08/28/1984US4468222 Intravenous liquid pumping system and method
08/28/1984US4468174 Helicopter transportable mud pump
08/22/1984EP0116165A1 Piston pump with rotating piston
08/21/1984US4466779 For well head flow lines
08/15/1984EP0115672A2 Diaphragm pumps
08/10/1984EP0109417A4 Hydropneumatic pressure converter.
08/08/1984EP0115422A2 An ink liquid supply system
08/08/1984EP0114942A1 Pneumatically powerable double acting positive displacement fluid pump
08/07/1984US4464098 Injection pump
08/01/1984EP0114202A1 Spool type fluid valve
07/1984
07/31/1984US4462764 Hydraulic long stroke pump
07/31/1984US4462549 Manual type miniature atomizer
07/24/1984US4461613 Hydraulic pump with variable-stroke piston and generator using said pump
07/17/1984US4460152 Hand pump with automatic lock-out
07/17/1984CA1171039A1 Manual type miniature atomizer
07/10/1984US4459089 Diaphragm pump with improved pressure regulation and damping
07/10/1984US4459088 Exhaust driven vacuum pump assembly
07/05/1984WO1984002557A1 A fluid intensifier
07/03/1984US4457670 Methods and apparatus for pumping compressible dynamoelectric machine lubricant material
06/1984
06/26/1984US4456439 High pressure plunger pump
06/26/1984US4455828 Hydraulic power unit
06/19/1984USRE31608 Fluid pump mechanism
06/12/1984US4453898 Dual-piston reciprocating pump assembly
05/1984
05/30/1984EP0109417A1 Hydropneumatic pressure converter.
05/29/1984US4451211 Radial piston compressor and drive motor coupling arrangement
05/15/1984USRE31586 Liquid chromatography pump
05/02/1984EP0107342A2 Pump assembly
04/1984
04/25/1984EP0105877A1 Pump for liquids and gases.
04/24/1984CA1166075A1 Fluid-powered submersible sampling pump
04/18/1984EP0105526A2 A control device for a pneumatically-driven demand pump
04/17/1984US4443163 Fluid motor or pump
04/11/1984EP0105202A1 Spray pump
04/10/1984US4441864 Hydraulic pump with a magnetically operated coupling
04/10/1984US4441862 Synchronized mixing pump
04/06/1984EP0092560A4 Pulse driven hydraulic pump.
04/04/1984EP0104847A1 A fluid-operated pump
04/03/1984CA1164728A1 Power steering pump
03/1984
03/28/1984EP0104080A2 Continuous flow positive displacement pumps
03/28/1984EP0104036A2 Single stage liquid motor and pump
03/27/1984US4439114 Pumping system
03/27/1984US4439112 Method and apparatus for pumping viscous and/or abrasive fluids
03/27/1984CA1164308A1 Fluid motor-pumping apparatus and method for energy recovery
03/27/1984CA1164270A1 Pump jack drive apparatus
03/20/1984CA1163860A1 Double diaphragm operated reversing valve pump
03/14/1984EP0102780A1 Fluid pumping system
03/13/1984US4436494 Plunger pump
03/13/1984US4436493 Self contained pump and reversing mechanism therefor
03/07/1984EP0102311A2 Fluid motor
03/06/1984US4434916 Manually operated liquid dispensing pump
02/1984
02/22/1984EP0101161A2 Apparatus and method for passing two fluids simultaneously through an analytical flow cell
02/14/1984US4431433 Single stage liquid motor and pump
02/08/1984EP0100149A1 Diaphragm pumps
02/07/1984US4429707 Hydraulic power transfer unit
12/1983
12/20/1983US4421463 Downhole pump
12/08/1983WO1983004288A1 Hydropneumatic pressure converter
12/06/1983US4419055 Low pressure fluid supply system
12/06/1983US4418542 Vehicular thoroughfares for power generation
11/1983
11/29/1983US4417860 Submersible well pump
11/23/1983EP0094862A1 Pneumatic driving device for a windscreen wiper and combined wiper-washer installation for headlights using such a device
11/15/1983US4415314 Metering pump
11/02/1983EP0092560A1 Pulse driven hydraulic pump.
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