Patents for F04C 25 - Adaptations for special use of pumps for elastic fluids (1,852)
08/2006
08/16/2006EP1242742B1 Cooled screw vacuum pump
08/16/2006CN2806819Y Tyre aerator
08/16/2006CN1270092C Fluid pump
08/16/2006CN1270090C Dry-type spiral vacuum pump
08/16/2006CN1270089C Dry-type spiral vacuum pump
08/09/2006EP1688621A2 Hand-held vacuum pump and automated urinary drainage system using that vacuum pump
07/2006
07/26/2006CN1807894A Hand-held vacuum pump and automated urinary drainage system using that vacuum pump
07/19/2006EP1240433B1 Dry compressing vacuum pump having a gas ballast device
07/19/2006EP1232344B1 Vacuum pump comprising an outlet
07/18/2006US7077159 Processing apparatus having integrated pumping system
07/12/2006EP1511936B1 Dual-shaft vacuum pump with a synchronous motor
07/11/2006US7074026 Multi-stage helical screw rotor
07/05/2006CN1262765C Vacuum pump
07/04/2006CA2357887C 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
06/2006
06/28/2006EP1673539A2 Evacuation apparatus
06/20/2006US7065469 Manufacturing apparatus and method for predicting life of a manufacturing apparatus which uses a rotary machine
06/15/2006US20060127245 Pump
06/08/2006US20060120909 Rotary piston vacuum pump with washing installation
06/08/2006DE102004058056A1 Zahnradanordnung Gear assembly
06/06/2006US7056108 Cooled screw-type vacuum pump
05/2006
05/30/2006US7051759 Processing apparatus having integrated pumping system
05/24/2006DE102004056396A1 Gear wheel arrangement for e.g. screw pump drive, has shafts for generation of lubricant jet, and including channel system for passing lubricant, outlet at which jet is discharged, and device deflecting jet in direction of tooth contacts
05/11/2006DE19704234B4 Verfahren und Vorrichtung zur Regelung des Saugvermögens von Vakuumpumpen Method and apparatus for regulating the pumping speed of vacuum pumps
05/10/2006CN1255923C AC generator with vacuum pump capable of enhancing cooling property
04/2006
04/27/2006DE10046902B4 Pumpenanlage und Verfahren zum Pumpen eines Gases Pump system and method for pumping a gas
04/18/2006US7029231 Liquid seal pump of the helical screw type
04/13/2006DE10232648B4 Kompressor Compressor
04/05/2006EP1643129A1 Composite dry vacuum pump having roots rotor and screw rotor
04/05/2006CN1755120A Composite dry vacuum pump having roots rotor and screw rotor
04/05/2006CN1249351C Screw vacuum pump with coolant circuit
04/05/2006CN1248639C Device for emptying food storage container which can be sealed by means of valve
03/2006
03/29/2006CN2767710Y 真空泵浦系统 Vacuum pump system
03/01/2006CN1740570A Micro machined vortex type compressor and relevant technology
02/2006
02/15/2006CN2758530Y 干式螺杆真空泵 Dry screw vacuum pump
02/15/2006CN1734096A Vacuum pump with turbination
02/15/2006CN1242172C Twin screw rotors and extrusion machines containing the same
02/01/2006CN1240108C Service life predication method of rotation machine for apparatus for making semiconductor and semiconductor-making apparatus thereof
02/01/2006CN1239228C Oil separator for pump overflowing with oil
01/2006
01/26/2006US20060018773 Air-cooled dry vacuum pump
01/11/2006CN1719037A Rotor of a vacuum vane pump for motor vehicle
12/2005
12/29/2005WO2005124246A1 Refrigeration compressor with magnetic coupling
12/29/2005WO2005124155A1 Screw vacuum pump
12/29/2005WO2005124154A1 Screw pump and screw gear
12/29/2005WO2005038255B1 Evacuation apparatus
12/29/2005CA2570971A1 Refrigeration compressor with magnetic coupling
12/28/2005EP1609995A1 Screw vacuum pump
12/28/2005EP1609990A1 Vacuum device and vacuum pump
12/28/2005CN1714245A Air-cooled dry vacuum pump
12/21/2005EP1607633A1 Vacuum pump
12/16/2005CA2471187A1 Improved refrigeration compressor with magnetic coupling
12/15/2005US20050276713 Twin-shaft vacuum pump and method of forming same
12/07/2005CN1230625C Plastic vane for a vane-cell vacuum pump
12/01/2005WO2005113984A1 Screw rotor and screw type fluid machine
11/2005
11/22/2005US6966938 Oil separator for pumps overflowing with oil
11/16/2005CN1696512A Combined vacuum pump and load-lock assembly
11/15/2005US6964560 Vacuum pump
11/15/2005US6964559 Two shaft vacuum pump with cantilevered rotors
11/09/2005CN2739388Y Oil-sealed slide valve vacuum pump
11/03/2005WO2005038255A3 Evacuation apparatus
11/03/2005US20050244294 Screw fluid machine
11/02/2005EP1591621A1 Screw fluid machine
11/02/2005CN1690427A Screw fluid machine
10/2005
10/20/2005US20050232791 Dual-shaft vacuum pump
10/20/2005US20050232783 Vacuum pump and method for generating sub-pressure
10/18/2005CA2359441C In-line gas compression system
10/13/2005US20050226739 Combined vacuum pump load-lock assembly
10/05/2005CN2731144Y Automatic lubricant replacing device for vacuum set
09/2005
09/29/2005DE10393602T5 Luftkühlende, trockene Vakuumpumpe Air-cooling, dry vacuum pump
09/28/2005CN2729363Y Mobile vacuum set
09/27/2005US6948921 Vacuum pump comprising an outlet
09/27/2005US6948919 Hermetic motor and gas booster
09/22/2005DE102005009752A1 Fluidmaschine Fluid machine
09/21/2005CN2727452Y Rotor type gas-liquid mixed transport pump
09/15/2005WO2005085643A1 Vacuum pump
09/14/2005CN2725579Y Vacuum oil pumping self circulation device
09/14/2005CN2725567Y High vacuum machine set
09/08/2005US20050193734 Fluid machine
09/07/2005EP1570162A1 Hermetic motor and gas booster
09/07/2005CN1664471A Fluid machine
08/2005
08/25/2005WO2005078281A1 Vacuum device
08/17/2005CN1656318A Dual-shaft vacuum pump
08/04/2005WO2005071268A1 Screw vacuum pump
08/03/2005EP1242743B1 Screw vacuum pump with a coolant circuit
08/02/2005US6923628 Vacuum pump
07/2005
07/28/2005US20050163632 Eccentric pump and method for operation of said pump
07/28/2005DE102004058399A1 Fluidmaschine Fluid machine
07/13/2005EP1553301A1 Vane type vacuum pump
07/13/2005EP1552152A1 Rotary piston vacuum pump with washing installation
07/07/2005US20050147517 Vacuum pump
06/2005
06/09/2005US20050123415 Fluid machine
06/07/2005US6902380 Vacuum pump with pump rotor pairs and permanent magnet motor
06/02/2005US20050118035 Multistage dry vacuum pump
06/01/2005EP1536140A1 Multistage dry vacuum pump
06/01/2005CN1623038A Vane type vacuum pump
05/2005
05/12/2005US20050100455 Vacuum pumps
05/12/2005US20050099075 Hermetic motor and gas booster
04/2005
04/28/2005WO2005038255A2 Evacuation apparatus
04/27/2005CN2695684Y Unit contraction rotary-vane vacuum pump
04/27/2005CN1610767A Multi-chamber installation for treating objects under vacuum, method for evacuating said installation and evacuation system therefor
04/20/2005CN2693995Y Vacuum pump with double air inlet and outlet
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