| Patents for F04B 53 - Component parts, details or accessories not provided for in, or of interest apart from, groups or (19,443) |
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| 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 | EP0739451B1 Micropump |
| 08/06/1997 | CN2258923Y Cylinder jacket having internal surface with metalloceramics coating for mud pump |
| 08/05/1997 | US5653885 Apparatus and method for supercritical fluid extraction |
| 08/05/1997 | US5653876 High pressure pump for fine liquid metering |
| 08/05/1997 | US5653584 Motor/pump mounting arrangement for a vertically mounting high pressure water pump |
| 08/05/1997 | US5653583 Oil hydraulic pump |
| 07/30/1997 | CN1155923A 活塞泵 Piston pump |
| 07/22/1997 | US5649812 For a pump and an electric motor assembly |
| 07/17/1997 | DE19600641A1 Venting pump for fire extinguishing centrifugal pump |
| 07/15/1997 | US5647737 Reciprocating pump with simplified seal replacement |
| 07/15/1997 | US5647575 Volumetric shaft/valve |
| 07/10/1997 | WO1997024528A2 Multichannel microdosing apparatus |
| 07/09/1997 | EP0783077A1 Diaphragm vacuum pump and cylinder head for a diaphragm vacuum pump |
| 07/09/1997 | CN2257572Y Mixed water type explosion-proof compressor back cooling apparatus |
| 07/08/1997 | US5645406 Transmission assembly with positive-displacement pump with suction throttle driven by a hydrodynamic converter |
| 07/08/1997 | US5645114 Dispensing assembly with interchangeable cartridge pumps |
| 07/03/1997 | DE19548498A1 High-pressure cleaning device |
| 07/02/1997 | EP0781376A1 Pressure vessel with air bubble ejection system |
| 07/02/1997 | CN2257333Y Compressor of refrigerator |
| 07/01/1997 | US5642990 Downhole pump apparatus |
| 07/01/1997 | US5642987 Method for pumping a liquefied gas |
| 06/26/1997 | WO1997022805A1 Low noise hydraulic pump with check valve timing device |
| 06/25/1997 | CN2256948Y Air inlet-exhaust valve for medium-pressure air compressor |
| 06/25/1997 | CN2256947Y Energy-saver for fluid pump |
| 06/19/1997 | DE19651724A1 Injection moulding of piston for car brake hydraulic master cylinder in glass reinforced plastic |
| 06/18/1997 | CN2256474Y Floating type connector |
| 06/18/1997 | CN1035209C Connector for an injection pump |
| 06/17/1997 | US5639219 Airless paint sprayer intake dampener and inlet valve spring |
| 06/11/1997 | CN2256043Y Long service life oil sucking pump with ceramic inlaid cylinder body |
| 06/11/1997 | CN1151481A Wobble plate pump |
| 06/10/1997 | US5636975 Inlet and discharge valve arrangement for a high pressure pump |
| 06/10/1997 | US5636688 Self aligning stuffing box for pumpjack units |
| 06/05/1997 | WO1997019716A1 Liquid drug infusion pump |
| 06/04/1997 | EP0630444B1 A pump and diaphragm |
| 06/03/1997 | US5635070 Pumping speed controlled and volume pumped determined from pressure-related signal in feedback circuit |
| 06/03/1997 | US5634780 Hand pump of a drinking device for pumping water to a diver |
| 06/03/1997 | US5634777 Radial piston fluid machine and/or adjustable rotor |
| 06/03/1997 | US5634776 Low noise hydraulic pump with check valve timing device |
| 05/29/1997 | WO1997019267A1 Connecting pin clip |
| 05/28/1997 | EP0775091A1 Biocide filter |
| 05/28/1997 | DE19543780A1 Radial piston pump for oil |
| 05/28/1997 | CN2254961Y Automatic protection valve for returned oil from vacuum pump |
| 05/28/1997 | CN1150620A Cast drilling pump output prepressing shock absorber |
| 05/28/1997 | CN1150619A 活塞式压缩机 Piston compressor |
| 05/27/1997 | US5632607 Piston and valve arrangement for a wobble plate type pump |
| 05/27/1997 | US5632606 For pumping fluids from a fluid source to a fluid sink |
| 05/27/1997 | US5632605 Multistage vacuum pump |
| 05/21/1997 | EP0774074A1 Disposable plastic liquid pump |
| 05/20/1997 | US5630711 Peristaltic pump having a loop-shaped tube path |
| 05/20/1997 | US5630708 Radial piston pump for low-viscosity fuel |
| 05/20/1997 | US5630706 Multichannel pump apparatus with microflow rate capability |
| 05/14/1997 | EP0772740A1 Piston pump |
| 05/14/1997 | CN1149671A Closed compressor |
| 05/13/1997 | US5628625 High pressure fluid pump for use in vehicular braking system having anti-lock and traction assist feature |
| 05/13/1997 | US5628624 Pump barrel valve assembly including seal/actuator element |
| 05/09/1997 | WO1997016643A2 Piston pump |
| 05/09/1997 | WO1997013067A3 Electric motor-pump assembly |
| 05/06/1997 | US5626467 Modular pump |
| 05/06/1997 | US5626464 Wobble plate pump |
| 05/02/1997 | EP0770778A2 Quick-change fluid section for piston-type paint pumps |
| 05/01/1997 | WO1997015335A1 Self-priming pulsed lavage pump |
| 04/30/1997 | DE19618539A1 Swashplate-type plunger pump |
| 04/30/1997 | DE19618524A1 High speed swash plate pump having axial pistons in rotating, sliding cylinder block with numerous sliding surfaces |
| 04/29/1997 | US5624238 Portable water pump for use with swimming pools |
| 04/24/1997 | DE19643134A1 Fuel injection pump for internal combustion engine |
| 04/23/1997 | EP0769102A1 Booster pump |
| 04/22/1997 | US5622484 Valve arrangement for a condiment dispensing system |
| 04/22/1997 | US5622482 Pump using shape memory alloys |
| 04/22/1997 | US5622480 Suction set retainer |
| 04/17/1997 | WO1997013439A1 Rear entry stepped pump |
| 04/16/1997 | EP0768463A1 Dosing pump |
| 04/16/1997 | EP0767864A1 Axial piston engine with a cooling circuit for the cylinders and pistons |
| 04/15/1997 | US5620314 Hand-operated liquid pump with removable parts |
| 04/15/1997 | US5620311 Piston pump having a pump casing to which a pump motor is attached |
| 04/15/1997 | US5620023 Exhaust-control valve for an electromagnetic pump |
| 04/10/1997 | WO1997013067A2 Electric motor-pump assembly |
| 04/10/1997 | WO1997012687A1 Device of miniaturised construction for producing high pressure in a fluid to be atomised |
| 04/10/1997 | DE19536902A1 Vorrichtung zur Hochdruckerzeugung in einem Fluid in Miniaturausführung Apparatus for generating high pressure in a fluid in miniature design |
| 04/08/1997 | US5618169 Water well pump cylinder components |
| 04/08/1997 | US5618163 Volumetric pump shift bottoming detector |
| 04/08/1997 | US5617773 Corrosion and abrasion resistant sleeve, iron shell, metallurgical bond between shell and sleeve |
| 04/03/1997 | DE19536696A1 Elektromotor-Pumpen-Aggregat Electric motor-pump assembly |
| 04/03/1997 | DE19536491A1 Electrically-operated gas or fluid feed valveless pump |
| 04/02/1997 | CN1146793A Variable displacement piston machine for reducing noise and vibration by reducing pulsation of discharge fluid |
| 04/02/1997 | CN1146533A Noise-reducing device for linear compressor |
| 04/01/1997 | US5616012 Ammonia pump |
| 04/01/1997 | US5616009 Mud pump |
| 03/26/1997 | CN2250436Y Fixing structure for sensitive device of water pump safety protection |
| 03/25/1997 | US5613840 Pump including a control valve and sealing member |
| 03/20/1997 | WO1997010434A1 Valve, in particular a non-return valve for use as the outlet valve of a reciprocating pump |
| 03/19/1997 | EP0681672B1 Process for conveying thick matter containing preshredded scrap metal or similar solids |
| 03/19/1997 | CN2249834Y Controlling seat of gas and liquid exhausting pipes |
| 03/19/1997 | CN2249833Y Hydraulic sealing soft piston |
| 03/18/1997 | US5611681 Reciprocating rod type pump for shear sensitive material |
| 03/13/1997 | WO1997009532A1 Hydraulic radial piston machine |
| 03/13/1997 | DE19533741A1 Ventil, insbesondere Rückschlagventil als Auslaßventil einer Kolbenpumpe Valve, check valve, in particular as an outlet of a piston pump |
| 03/12/1997 | EP0761967A1 Hydraulic housing block with piston pump |
| 03/12/1997 | EP0760906A1 Piston pump |