| Patents for F04C 13 - Adaptations of machines or pumps for special use, e.g. for extremely high pressures (1,349) |
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| 10/04/2000 | EP1040758A1 Device for transporting pasty material and method for detecting the air quantity |
| 10/03/2000 | US6126039 Method and apparatus for accurately dispensing liquids and solids |
| 09/26/2000 | US6123531 Bearing arrangement for a pump shaft of a pump for delivering media of different viscosities |
| 09/21/2000 | WO2000055505A1 Comminuting pump |
| 09/12/2000 | US6116877 Gear pump for use in an electrically-operated sealed compressor |
| 07/18/2000 | US6089832 Through-tubing, retrievable downhole pump system |
| 07/05/2000 | EP1015735A2 Screw conveyor for the transport of liquid substances and/or lumps of materials |
| 07/04/2000 | US6082973 Liquid ring machine having a rotor with sweeping edges for scraping-off deposits |
| 06/29/2000 | DE19857599A1 Positive displacement pump preferably for use for medical purposes has fluid pumped by magnets that are driven by step motor |
| 06/27/2000 | US6080321 Dialysis machine for the removal of toxic substances from the blood with agents for the decalcification of a dialysis liquid circulation as well as process for determining the degree of calcification of a dialysis machine |
| 06/21/2000 | CN1257564A Sub-sea pumping system and associated method |
| 06/15/2000 | WO2000034554A1 Extrusion pump |
| 06/02/2000 | WO2000031417A1 Through-tubing, retrievable downhole pump system |
| 05/16/2000 | US6062836 Gear pump |
| 05/09/2000 | US6059539 Sub-sea pumping system and associated method including pressure compensating arrangement for cooling and lubricating |
| 05/04/2000 | WO2000025025A1 Submersible pump assembly for use in a well |
| 05/04/2000 | DE19848796C1 Tauchpumpeneinrichtung zur Verwendung in einem Bohrloch Submersible pump device for use in a wellbore |
| 05/04/2000 | CA2314873A1 Submersible pump assembly for use in a well |
| 04/27/2000 | WO2000023251A1 Extrusion method, extruder and product produced thereby |
| 04/13/2000 | WO2000020759A1 Gear pump for pumping highly viscous fluids |
| 04/06/2000 | DE19843161A1 Gehäuseaufbau zur Aufnahme eines Mikrosystems mit Fluiddurchsatz Housing assembly for receiving a micro system with fluid flow rate |
| 04/05/2000 | EP0990198A2 Method and apparatus for accurately dispensing liquids and solids |
| 04/04/2000 | US6045333 Method and apparatus for controlling a submergible pumping system |
| 03/30/2000 | WO2000017523A1 Housing construction for accommodating a toothed ring micropump |
| 03/22/2000 | EP0986692A1 Sub-sea pumping system and associated method |
| 03/21/2000 | US6039551 Gear pump for use in an electrically-operated sealed compressor |
| 03/21/2000 | US6039545 Method and apparatus for precision metering of high viscosity materials |
| 02/03/2000 | WO2000005504A1 Gear pump |
| 02/01/2000 | US6019583 Reverse moineau motor |
| 02/01/2000 | CA2183884C Metering cap with integral pump-motor hand operated mixing facility |
| 01/27/2000 | DE19833372A1 Gear pump for vehicle power steering, integrated in casing and surrounded by absorber cavity and induction cavity |
| 01/13/2000 | DE19829195A1 Pump for conveying heat-setting media in printers |
| 01/04/2000 | US6010321 Rotary mower spindle and hydraulic motor |
| 11/25/1999 | DE19921836A1 Automotive hydrostatic rotary gear has concentric rotary pump |
| 11/25/1999 | DE19919240A1 Positive displacement rotary piston bore hole motor and pumping unit |
| 11/23/1999 | US5988992 Retrievable progressing cavity pump rotor |
| 11/17/1999 | EP0956452A1 Impeller for a liquid ring machine |
| 11/11/1999 | DE19820622A1 Demountable pump or compressor for chemical or food processing industry |
| 10/27/1999 | EP0952350A1 Pump unit for viscous materials |
| 10/19/1999 | US5967426 Knockdown portable liquid drywall material spray system apparatus and method |
| 10/13/1999 | CN2343386Y Three gear pump |
| 10/13/1999 | CN2343385Y Improved structure pressing pum |
| 09/30/1999 | WO1999049220A1 Dry vacuum pump |
| 09/30/1999 | DE19812976A1 Flüssigkeitsringverdichter Liquid ring compressor |
| 09/29/1999 | EP0945621A1 Liquid ring compressor |
| 09/29/1999 | CN2340948Y Electrically controlling vacuum pump for capsule channel |
| 09/22/1999 | EP0943804A1 Compact sealless screw pump |
| 09/21/1999 | US5954486 Squeeze pump having shrink fitter rollers |
| 09/10/1999 | WO1999045272A1 Integrated positive displacement pump motor assembly for fuel dispensing |
| 09/02/1999 | DE19910514A1 Rotary piston machine for use as engine |
| 09/01/1999 | EP0939226A1 Displacement pump and method of use thereof |
| 08/26/1999 | CA2262715A1 Displacement pump and method of use thereof |
| 08/24/1999 | US5941275 Pump for periodic conveyance of the cooled-down water content of a hot water distribution line |
| 08/12/1999 | WO1999040324A1 Sealing system for a gear pump for high-viscosity rubber, polymer materials and similar products to be pumped |
| 06/10/1999 | DE19802025C1 Grinding pump for pumping waste water contg. solid material |
| 06/09/1999 | EP0921313A2 Vane pump |
| 05/18/1999 | US5904474 Hydraulic pump, suitable for food products |
| 05/18/1999 | US5904472 Motor pump unit for a vapor return system |
| 05/12/1999 | CN1216596A Progressive cavity pump using composite materials |
| 04/28/1999 | EP0910747A1 Control of lubrication and temperature of the bearings of a pump |
| 04/22/1999 | DE19742669A1 Catheter |
| 04/06/1999 | US5890813 Stuffing pump for use in apparatus for stuffing sausages or the like |
| 04/06/1999 | US5890656 Integrated gear pump dispenser for robotic dispensing |
| 03/23/1999 | US5885065 Method and pump for pumping liquid containing solids |
| 02/24/1999 | EP0897478A1 Bending rod connection |
| 02/17/1999 | EP0897063A2 Device for delivering elastomeric material |
| 02/16/1999 | US5871340 Apparatus for cooling high-pressure boost high gas-fraction twin-screw pumps |
| 02/03/1999 | EP0894195A1 Progressive cavity pumps using composite materials |
| 01/20/1999 | CN2304769Y Fixed rubber ring air pump for aeration and suction |
| 01/13/1999 | CN1204733A Squeeze pump having improved rollers |
| 01/12/1999 | US5857589 Method and apparatus for accurately dispensing liquids and solids |
| 01/07/1999 | EP0889238A2 Squeeze pump having improved rollers |
| 12/30/1998 | CN1203654A Sub-sea pumping system and associated method |
| 12/10/1998 | WO1998024722A3 Method and apparatus for accurately dispensing liquids and solids |
| 12/02/1998 | CN2299169Y Hysteresis motor type discharge pump |
| 11/26/1998 | WO1998053182A1 Sub-sea pumping system and associated method |
| 11/25/1998 | EP0879358A1 Rotary piston regulating device |
| 11/18/1998 | EP0878627A1 Compressor with at least one compressor stage and a moisture separator |
| 11/18/1998 | EP0877895A1 A sub-sea pumping system and an associated method |
| 11/10/1998 | US5833444 Fluid driven motors |
| 10/28/1998 | EP0757758B1 An installation and a method for pumping up fluid from the earth's crust |
| 10/22/1998 | DE19715608A1 Rotary piston pump, particularly for delivery of fluids containing solid matter |
| 10/06/1998 | US5816297 Vapor control system |
| 10/01/1998 | DE19711675A1 Surgical hand instrument for removing tissue material in e.g. cataract surgery |
| 08/26/1998 | EP0859645A1 System for actively supporting the flow of body fluids |
| 08/18/1998 | US5795135 Sub-sea pumping system and an associated method including pressure compensating arrangement for cooling and lubricating fluid |
| 08/13/1998 | WO1998035135A1 Screw conveyor for the transport of liquid substances and/or lumps of materials |
| 08/12/1998 | EP0736128B1 Downhole motor for a drilling apparatus |
| 07/28/1998 | US5785509 Wellbore motor system |
| 07/23/1998 | DE19701276A1 Gear pump |
| 07/21/1998 | US5782608 Method and apparatus for controlling a progressing cavity well pump |
| 07/15/1998 | EP0852674A1 Micromotor and micropump |
| 07/02/1998 | WO1998028542A1 Impeller for a liquid ring machine |
| 06/30/1998 | US5772417 Gear pump for conveying viscous fluid media and method of making same |
| 06/25/1998 | DE19653746A1 Laufrad für eine Flüssigkeitsringmaschine Impeller for a liquid ring machine |
| 06/11/1998 | WO1998024722A2 Method and apparatus for accurately dispensing liquids and solids |
| 06/10/1998 | EP0846860A2 Arrangement for treating thermoplastic melt with a gear pump |
| 06/10/1998 | EP0846228A1 Fuel supply pump for a fuel injection pump for internal combustion engines |
| 06/09/1998 | US5762485 Zirconia and zirconia composite ceramic shafts for gear micropumps and method of making same |
| 06/02/1998 | US5759019 Filament fiber impregnated with a thermosetting resin |