| Patents for F04C 13 - Adaptations of machines or pumps for special use, e.g. for extremely high pressures (1,349) |
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| 08/16/2005 | US6929064 Downhole pump |
| 08/11/2005 | US20050175478 Devices Employing Colloidal-Sized Particles |
| 08/09/2005 | US6926492 Suction housing for rotor/stator pump |
| 08/04/2005 | US20050169779 Progressing cavity pump |
| 08/03/2005 | EP1559913A1 Progressive cavity pump |
| 08/03/2005 | CN1650292A Automated system for control and diagnostics for dispensing system |
| 07/28/2005 | WO2005068837A1 Extruder with gear pump |
| 07/28/2005 | US20050163640 Rotary drivehead for downhole apparatus |
| 07/21/2005 | WO2005066501A1 Sealing surfaces between a wavy rotor collar and a displaceable slide of a pump |
| 07/21/2005 | WO2005066500A1 Rotary piston pump having an axially moving vane |
| 07/21/2005 | WO2005066499A1 Rotary piston pump comprising an axially movable vane |
| 07/21/2005 | WO2005066498A1 Rotary piston pump comprising an axially movable vane |
| 07/21/2005 | WO2005066497A1 Rotary pump provided with an axially movable blade |
| 07/21/2005 | WO2005066496A1 Rotary pump provided with an axially movable blade |
| 07/14/2005 | US20050152803 Internal gear pump with recesses on the gear bearing surfaces |
| 07/07/2005 | US20050147518 Gear pump with gears having curved teeth and method of feeding elastomeric material |
| 07/06/2005 | EP1550542A1 Curved teeth for gear pump |
| 07/06/2005 | EP1549478A1 Extruder/gear pump assembly |
| 06/29/2005 | EP1545860A2 Roll-fed progressing cavity pump/extruder |
| 06/28/2005 | US6911752 Concatenated motor assembly |
| 06/21/2005 | US6907925 PC pump inlet backwash method and apparatus |
| 06/16/2005 | US20050128869 Apparatus and method for injecting a liquid dye into a polymer melt |
| 06/15/2005 | EP1541870A2 Extruder and related extrusion process |
| 06/15/2005 | EP1540185A1 Vacuum pump and method of starting the same |
| 05/26/2005 | WO2004013386A3 Device and method for injecting a liquid colour into a polymer melt |
| 05/19/2005 | DE10348985B3 Zahnradpumpe Gear pump |
| 05/12/2005 | WO2005042910A2 Asymmetric contouring of elastomer liner on lobes in a moineau style power section stator |
| 05/12/2005 | WO2004076858A3 Oil well pump apparatus |
| 05/12/2005 | US20050098579 Apparatus for dispensing free-flowing material |
| 05/06/2005 | WO2005039859A1 Gear pump |
| 05/06/2005 | CA2543145A1 Gear pump |
| 05/05/2005 | US20050092525 Down-hole vane motor |
| 05/04/2005 | CN2697352Y Pressure pump |
| 04/28/2005 | US20050089430 Asymmetric contouring of elastomer liner on lobes in a Moineau style power section stator |
| 04/28/2005 | US20050089429 Composite material progressing cavity stators |
| 04/21/2005 | US20050084391 Fuel pump with filter-absent safety valve and universal inlet and outlet |
| 04/21/2005 | US20050084366 Suction housing for rotor/stator pump |
| 04/21/2005 | US20050081366 Miniature precision bearings for minisystems or microsystems and method for assembling such systems |
| 04/21/2005 | DE10257859B4 Schraubenspindelpumpe Screw Pump |
| 04/14/2005 | US20050079063 Fluid controlled pumping system and method |
| 04/12/2005 | US6877967 Eccentric single-rotor screw pump |
| 03/30/2005 | EP1454063B1 Feed pump |
| 03/02/2005 | EP1509699A1 Multi-chamber positive displacement fluid device |
| 03/01/2005 | CA2377631C Pc pump inlet backwash method and apparatus |
| 02/22/2005 | US6857860 Metering pump for liquid products |
| 02/09/2005 | EP1053360B1 Extrusion pump |
| 02/02/2005 | CN2675906Y Non-leakage gear pump |
| 01/27/2005 | DE19751082B4 Mobile Pumpenvorrichtung und Kupplung Mobile device pumps and clutch |
| 01/27/2005 | DE10200393B4 Partielle Spannsperre für eine Exzenterschneckenpumpe (partiell nachspannbarer Stator) Partial clamping lock on a progressing cavity pump (partially restreched stator) |
| 01/20/2005 | US20050011642 Stuffing box for progressing cavity pump drive |
| 01/20/2005 | DE102004030478A1 Vane cell pump for circulating lubricating oil has ten equispaced vanes in slots in rotor engaging inside surface of fixed housing with rising and falling regions separated by circular regions |
| 01/18/2005 | US6843436 Chopper pump |
| 01/12/2005 | EP1495229A1 Internal gear pump with recesses on the gear bearing surfaces |
| 01/11/2005 | US6840324 System for, and a method of pumping fluids from a well |
| 01/06/2005 | WO2005001289A2 Vane-cell pump or a roll-cell pump |
| 01/06/2005 | US20050002812 Method of adapting a downhole multi-phase twin screw pump for use in wells having a high gas content and a downhole multi-phase twin screw pump |
| 12/29/2004 | WO2004090330A3 Screw pump |
| 12/14/2004 | CA2108315C Pumping system with high discharge positive displacement pump |
| 12/02/2004 | US20040238328 Screw conveyor for the transport of flowable substances and/or lumps of material |
| 12/01/2004 | CN1551950A Screw conveyor for the transport of flowable substances and/or lumps of material |
| 12/01/2004 | CN1550432A Device for filler incrustation |
| 11/30/2004 | US6824369 Rotary variable expansible chamber-kinetic hybrid pump |
| 11/30/2004 | US6824368 Pump for conveying molten masses of polymers and elastomers |
| 11/25/2004 | US20040234681 Pressure-controlling dispersion delivery system |
| 11/24/2004 | CN1176831C Device for packaging feeded material |
| 11/23/2004 | CA2120187C Pumping device having two suction ports - application to a subhorizontal drain |
| 11/18/2004 | US20040228745 Pumps |
| 11/16/2004 | US6817843 Ball check air vent for transmission pump |
| 11/16/2004 | US6817487 Rotary lobe pump metering assembly |
| 11/10/2004 | EP1475536A2 Improvements in or relating to pumps |
| 11/03/2004 | CN1543541A 齿轮泵 Gear pumps |
| 11/02/2004 | US6811382 Integrated pumping system for use in pumping a variety of fluids |
| 10/28/2004 | US20040213680 Multistage gear pump |
| 10/28/2004 | US20040211647 Twin screw pump for flowabe solids with overload protection |
| 10/26/2004 | US6808374 Sanitary design gear pump |
| 10/21/2004 | WO2004090330A2 Screw pump |
| 10/12/2004 | US6802702 Feed pump for fluidic media having sleeve bearing lubrication |
| 10/12/2004 | US6802489 Micro-fluidic valve with a colloidal particle element |
| 09/23/2004 | WO2004081347A1 Rotor for a helical hydraulic unit |
| 09/23/2004 | US20040184939 Feed pump |
| 09/10/2004 | WO2004076858A2 Oil well pump apparatus |
| 09/09/2004 | US20040175268 Rotary kinetic tangential pump |
| 09/08/2004 | EP1454063A1 Feed pump |
| 09/08/2004 | EP1454062A1 Feed pump for fluidic media |
| 09/08/2004 | CN1527911A Clutch assembly with a gear pump |
| 09/01/2004 | CN1525932A Twin screw pump for flowabe solids with overload protection |
| 08/26/2004 | US20040165985 Cooling water pump device for outboard motor |
| 08/19/2004 | US20040161357 Gear pump |
| 08/19/2004 | DE10251367B4 Vorrichtung zur Bearbeitung von Flüssigkeiten, insbesondere mit darin enthaltenen Feststoffen, oder von fließ- oder schüttfähigen, zerkleinerbaren Feststoffen Apparatus for processing liquids, especially with solids contained therein, or flowing or pourable comminuted solids |
| 08/12/2004 | DE10305454A1 Pumpvorrichtung Pumping device |
| 08/11/2004 | EP1445492A1 Gear oil pump for hermetic compressors |
| 08/11/2004 | EP1445490A2 Pumping arrangement |
| 08/05/2004 | WO2004064992A1 Dividing device |
| 08/05/2004 | US20040151608 High torque rotatable progressive cavity drive rods and connectors |
| 07/29/2004 | US20040146413 Fuel pump with filter-absent safety valve and universal inlet and outlet |
| 07/28/2004 | EP1441126A2 Multistage gear pump |
| 07/21/2004 | CN1513606A Hot melt adhesive distributing and spreading unit having independent gear pump assembly |
| 07/15/2004 | DE10258666A1 Downhole immersion pump for more severe duties, includes coupling section between slowly-rotating drive and pump in slender arrangement |
| 07/13/2004 | US6761546 Gear pump having bearings with cooling ducts |
| 07/08/2004 | DE10257859A1 Schraubenspindelpumpe Screw Pump |