| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 11/03/1999 | CN2346964Y Double-hinged spacing vane rolling piston compressor |
| 11/03/1999 | CN2346963Y 星星齿轮喷雾泵 Stars gear pump spray |
| 11/03/1999 | CN1234095A Compact scroll fluid device |
| 11/03/1999 | CN1233714A Eccentric screw bolt pump |
| 11/02/1999 | US5975868 Vane pump precompression chamber |
| 10/28/1999 | WO1999054596A1 Multi-plate hydraulic motor valve |
| 10/28/1999 | WO1999054595A1 Hydraulic motor valve with integral case drain |
| 10/28/1999 | WO1999054594A1 Hydraulic motor plates |
| 10/28/1999 | WO1999054055A1 Segmented metering die for hot melt adhesives or other polymer melts |
| 10/28/1999 | DE19824848A1 Exzenterschneckenpumpe Cavity Pump |
| 10/28/1999 | CA2327357A1 Segmented metering die for hot melt adhesives or other polymer melts |
| 10/27/1999 | CN2345739Y Pin-type vane pump |
| 10/27/1999 | CN2345738Y Oscillating vane pump |
| 10/27/1999 | CN2345737Y Screw pump |
| 10/27/1999 | CN2345736Y Screw pump |
| 10/27/1999 | CN2345735Y Improved structure of transporting gear pump |
| 10/20/1999 | CN2344584Y 滚柱转子泵 Roller rotor pump |
| 10/20/1999 | CN1232142A Slit ring seal |
| 10/19/1999 | US5967426 Knockdown portable liquid drywall material spray system apparatus and method |
| 10/14/1999 | DE19815421A1 Innenzahnradmaschine Internal gear pump |
| 10/13/1999 | EP0949419A1 Internal gear pump |
| 10/13/1999 | CN2343384Y 叶片泵 Vane pump |
| 10/13/1999 | CN2343383Y Assembly of gasoline pump |
| 10/13/1999 | CN2343382Y Suspended electric oil-submersible screw pump |
| 10/12/1999 | US5964584 Vane pump having a shaftless balanced rotor |
| 10/07/1999 | WO1999050559A1 Oil pump with a pressure compensation hole |
| 10/07/1999 | DE19814545A1 Ölpumpe mit Druckausgleichsbohrung Oil pump with pressure equalization hole |
| 10/06/1999 | EP0947700A1 Moineau pump |
| 10/06/1999 | EP0947699A1 Gear pump |
| 09/30/1999 | WO1999049220A1 Dry vacuum pump |
| 09/30/1999 | DE19913897A1 Oil pump mechanism in motor vehicle engines |
| 09/30/1999 | DE19811889A1 Spannschelle Action Clamp |
| 09/29/1999 | CN2340947Y Small volume large flow oil pump |
| 09/29/1999 | CN2340946Y Screw pump with metal stator |
| 09/29/1999 | CN2340945Y High-lift small size plunger pump |
| 09/29/1999 | CN1230242A Screw rotor set |
| 09/28/1999 | CA2264361A1 Eccentric worm pump |
| 09/23/1999 | WO1999032782A8 Gear-type fuel pump and vehicle equipped with same |
| 09/23/1999 | DE19908174A1 Fluid pump for use in fuel pump in vehicles |
| 09/23/1999 | DE19812154A1 Mixing and conveying apparatus used e.g. for mixing and conveying mortar mixtures |
| 09/22/1999 | EP0943806A1 Displacement type fluid machine |
| 09/22/1999 | EP0943803A1 Stator for a Moineau pump |
| 09/22/1999 | EP0943056A1 Motor pump unit |
| 09/16/1999 | WO1999046481A1 Gas and liquid turbine |
| 09/15/1999 | CN2338514Y Rotor pump with reciprocating vanes |
| 09/15/1999 | CN2338513Y Volume pump for oil-air mixture delivery |
| 09/15/1999 | CN1045120C 油泵 Pump |
| 09/14/1999 | US5951274 Internal-gear machine |
| 09/14/1999 | US5951171 Slide bearing, particularly for a gear pump |
| 09/10/1999 | WO1999045272A1 Integrated positive displacement pump motor assembly for fuel dispensing |
| 09/07/1999 | US5948905 Efficient and simple proceess by heating and pressurizing mixture of undissolved cellulose, tertiary amine n-oxides and water; flash evaporation of mixture at reduced pressure; obtaining cellulose solution |
| 09/07/1999 | US5947567 Hydraulic vehicle brake system with wheel slip regulator device |
| 09/07/1999 | CA2119322C Carbide or boride coated rotor for a positive displacement motor or pump |
| 09/02/1999 | WO1999043926A1 Rotary-piston machine |
| 09/02/1999 | WO1999031389A3 Method of making stators for moineau pumps |
| 09/01/1999 | EP0769104B1 Helical gear pump or motor |
| 08/31/1999 | US5944499 Rotor-type pump having a communication passage interconnecting working-fluid chambers |
| 08/26/1999 | WO1999042727A1 Hydrostatic pump or engine with infinitely variable debit or impulse |
| 08/25/1999 | CN2334918Y Double slide pieces rotary moving mechanism |
| 08/25/1999 | CN2334917Y Mixing delivery pump |
| 08/25/1999 | CN2334916Y Liquid-delivering gear pump |
| 08/25/1999 | CN2334915Y Single screw bolt pump |
| 08/24/1999 | US5941788 Vehicle drivetrain differential |
| 08/17/1999 | US5938638 Device for the controlled injection of a programmable quantity of liquid |
| 08/17/1999 | CA2153144C Downhole roller vane motor and roller vane pump |
| 08/12/1999 | WO1999040324A1 Sealing system for a gear pump for high-viscosity rubber, polymer materials and similar products to be pumped |
| 08/12/1999 | WO1999039621A1 Quiet vacuum cleaner using a vacuum pump with a lobed chamber |
| 08/12/1999 | CA2320093A1 Quiet vacuum cleaner using a vacuum pump with a lobed chamber |
| 08/11/1999 | EP0935073A1 Elastomeric stator for eccentric screw pumps |
| 08/11/1999 | EP0935072A1 Eccentric screw pump |
| 08/11/1999 | EP0935071A1 Elastomeric stator for eccentric screw pumps |
| 08/11/1999 | EP0934464A1 Progressive cavity pump |
| 08/11/1999 | CN2332828Y Low voltage d. c. electric pump |
| 08/11/1999 | CN1044592C Fluid supplying apparatus |
| 08/10/1999 | US5934891 Constant leakage flow, pulsation free screw pump |
| 08/05/1999 | WO1999039103A1 Pressure clamped hydraulic pump |
| 08/05/1999 | WO1999039102A1 Omega type pump |
| 08/05/1999 | WO1999039099A1 Hydraulic motor lubrication path |
| 08/05/1999 | WO1996036557A8 Juice concentrate package for postmix dispenser |
| 08/04/1999 | EP0933530A1 Internal gear pump free from inner crescent space |
| 08/04/1999 | EP0933529A2 Internal gear pump with empty crescent space |
| 08/04/1999 | CN2331773Y Inner gearing type engine-oil pump |
| 08/04/1999 | CN1224806A Gear pump or motor |
| 07/29/1999 | WO1999037922A1 Gear pump |
| 07/29/1999 | DE19900927A1 Paddle blade hydraulic pump assembly |
| 07/29/1999 | DE19900926A1 Pump for hydraulic oil |
| 07/28/1999 | EP0931936A1 Gerotor motor and improved valve drive and brake assembly therefor |
| 07/28/1999 | EP0931935A1 Gerotor motor and improved spool valve therefor |
| 07/28/1999 | EP0931221A1 A rotary machine |
| 07/28/1999 | EP0931014A1 Dispensing apparatus including a pump package system |
| 07/22/1999 | DE19801021A1 Elastomer stator for eccentric screw pump |
| 07/22/1999 | DE19801020A1 Elastomer stator for an eccentric worm pump |
| 07/21/1999 | CN2329793Y Positive displacement rotary vane pump |
| 07/20/1999 | US5924929 Flexible drive shaft and drive shaft and rotor assembly |
| 07/20/1999 | US5924854 Gear pump channel arrangement for tempering media |
| 07/13/1999 | US5921274 Internal relief and bypass valve for pumps and piping systems |
| 07/13/1999 | CA2171643C Engaged rotor |
| 07/08/1999 | WO1999034116A1 High efficiency gear pump |
| 07/07/1999 | CN2327809Y Three-ring hydraulic machine |
| 07/01/1999 | WO1999032782A1 Gear-type fuel pump and vehicle equipped with same |