| Patents for F04C 25 - Adaptations for special use of pumps for elastic fluids (1,852) |
|---|
| 01/02/2003 | EP1270948A2 Sealing for a vacuum pump |
| 01/02/2003 | EP1269024A1 Bacterial growth inhibition in a circulation system comprising a compressor |
| 01/02/2003 | EP1268984A2 High efficiency turbine |
| 01/01/2003 | CN2528974Y Water-ring vacuum pump |
| 12/26/2002 | US20020197171 Vacuum pump |
| 12/26/2002 | US20020197168 Vacuum pump apparatus having improved sealing structure |
| 12/24/2002 | US6497563 Dry-compressing screw pump having cooling medium through hollow rotor spindles |
| 12/24/2002 | US6497555 Liquid ring pump |
| 12/19/2002 | US20020192097 Vacuum pump |
| 12/11/2002 | EP1265338A2 Vacuum pump |
| 12/05/2002 | WO2002097275A1 Liquid seal pump of the helical screw type |
| 11/27/2002 | EP1259736A2 Vacuum pump aggregate |
| 11/26/2002 | US6485274 Displacement machine for compressible media |
| 11/14/2002 | US20020168279 Shaft seal structure of vacuum pumps |
| 11/07/2002 | DE19882987C2 Vakuumpumpe Vacuum pump |
| 10/30/2002 | EP1252444A1 Drive mechanism for a screw pump |
| 10/29/2002 | US6471497 Gas supplying device for vacuum pump |
| 10/29/2002 | US6471494 Vacuum pumping apparatus |
| 10/24/2002 | WO2002068091A3 Oil separator for pumps overflowing with oil |
| 10/24/2002 | US20020155014 Pressure seal for a vacuum pump |
| 10/17/2002 | US20020150494 Shaft seal structure of vacuum pumps |
| 10/17/2002 | US20020150472 Dynamic attenuator of discharge noise from rotary vacuum machines |
| 10/16/2002 | EP1249610A1 Dynamic discharge noise attenuator for rotary vacuum machines |
| 10/09/2002 | EP0714482B2 Vacuum pump with oil separator |
| 10/03/2002 | US20020141893 Shaft seal structure of vacuum pumps |
| 10/03/2002 | US20020141886 Displacement machine for compressible media |
| 09/25/2002 | EP1243795A1 A two-stage vacuum pump |
| 09/25/2002 | EP1242743A1 Screw vacuum pump with a coolant circuit |
| 09/25/2002 | EP1242742A1 Cooled screw vacuum pump |
| 09/24/2002 | US6453688 Idling engine speed control apparatus |
| 09/19/2002 | US20020131870 System for pumping low thermal conductivity gases |
| 09/18/2002 | EP1240433A1 Dry compressing vacuum pump having a gas ballast device |
| 09/12/2002 | WO2001011239A3 Vacuum pump aggregate |
| 09/06/2002 | WO2002068091A2 Oil separator for pumps overflowing with oil |
| 09/04/2002 | EP1236903A2 Shaft seal structure of vacuum pumps |
| 09/04/2002 | EP1236902A2 Shaft seal structure of vacuum pumps |
| 09/04/2002 | EP1236901A2 Shaft seal structure of vacuum pumps |
| 08/27/2002 | US6439864 Two stage scroll vacuum pump with improved pressure ratio and performance |
| 08/21/2002 | EP1232344A1 Vacuum pump comprising an outlet |
| 08/20/2002 | US6434944 High efficiency turbine |
| 08/08/2002 | WO2002061286A1 Two stage scroll vacuum pump with improved pressure ration and performance |
| 08/08/2002 | WO2002061283A2 Scroll vacuum pump with improved performance |
| 08/07/2002 | EP1021653B1 Cooled screw vacuum pump |
| 08/07/2002 | CN2504406Y Magnetic driving roots vacuum pump |
| 07/31/2002 | EP1227246A2 Shaft seal structure for vacuum pump |
| 07/31/2002 | CN2503232Y High-pressure-resistant multi-stage claw-type rotor vacuum pump |
| 07/30/2002 | US6425742 Discharge silencer provided with drain recovering function |
| 07/25/2002 | US20020096838 Shaft seal structure for vacuum pump |
| 07/16/2002 | US6419455 System for regulating pressure in a vacuum chamber, vacuum pumping unit equipped with same |
| 07/11/2002 | WO2002016773A8 Pressure seal for a vacuum pump |
| 07/11/2002 | US20020090310 Vacuum exhaust apparatuses and vacuum exhaust methods |
| 06/13/2002 | WO2002046044A1 Device for emptying a food storage container which can be sealed by means of a valve |
| 06/13/2002 | CA2431227A1 Device for emptying a food storage container which can be sealed by means of a valve |
| 05/16/2002 | US20020057964 Screw-type dry vacuum pump |
| 05/15/2002 | EP1205666A2 Screw-type dry vacuum pump |
| 05/15/2002 | CN2491628Y Spiral rotor of vacuum pump |
| 05/14/2002 | US6386848 Screw rotors and screw machine |
| 05/07/2002 | US6382930 Screw vacuum pump provided with rotors |
| 05/02/2002 | EP1201927A2 Vacuum pump |
| 05/02/2002 | DE10060996C1 Apparatus, for evacuating foodstuff container with a closure valve, is an attachment for a conventional electrical kitchen appliance, to drive a vacuum vane pump |
| 05/01/2002 | CN2489117Y Horizontal box-opening multistage double-claw type rotor oil-free vacuum pump |
| 05/01/2002 | CN2489115Y Dry-type vacuum pump |
| 04/30/2002 | US6379135 Vacuum pumps |
| 04/25/2002 | WO2002033262A1 Multi-stage helical screw rotor |
| 04/25/2002 | US20020048524 Multi-stage helical screw rotor |
| 04/24/2002 | EP1199476A2 Vacuum pump |
| 04/24/2002 | EP1199475A2 Vacuum pump |
| 04/23/2002 | US6375443 Screw rotor type wet vacuum pump |
| 04/23/2002 | US6375431 Evacuating apparatus |
| 04/17/2002 | CN1083067C Oil-sealed vane-type rotary vacuum pump with oil pump |
| 04/11/2002 | DE10046697A1 Flügel aus Kunststoff für eine Flügelzellen-Vakuumpumpe Wings made of plastic for a vane vacuum pump |
| 04/09/2002 | US6368091 Screw rotor for vacuum pumps |
| 04/03/2002 | EP1193396A2 Automotive vane-type vacuum pump |
| 03/28/2002 | WO2002025113A1 Plastic vane for a vane-cell vacuum pump |
| 03/19/2002 | US6359411 Displacement machine for compressible media |
| 02/28/2002 | WO2002016773A1 Pressure seal for a vacuum pump |
| 02/21/2002 | DE10039006A1 Zweiwellenvakuumpumpe Twin-screw vacuum pump |
| 02/20/2002 | CN1079505C Oil sealed vane-type rotary vacuum pump with oil feed |
| 02/14/2002 | WO2002012726A1 Two-shaft vacuum pump |
| 02/13/2002 | CN2476658Y Dry-type screw vacuum pump |
| 02/13/2002 | CN1335915A Scroll-type fluid displacement device for vacuum pump application |
| 01/31/2002 | WO2002008609A1 Twin screw rotors and displacement machines containing the same |
| 01/23/2002 | CN1078315C Displacement machine with screw rotor pair as function unit |
| 01/16/2002 | CN2471974Y Direct connecting vacuum pump |
| 01/10/2002 | US20020004016 Gas supplying device for vacuum pump |
| 12/13/2001 | US20010051101 Vacuum pumps |
| 12/05/2001 | CN2463567Y 爪式转子真空泵 Claw rotor pump |
| 12/05/2001 | CN2463566Y Gas delivery vacuum pump for magnetic drive motor |
| 11/21/2001 | CN1323376A Liquid ring pump |
| 11/15/2001 | US20010041145 Vacuum pumps |
| 11/13/2001 | US6315535 Screw vacuum pump having valve controlled cooling chambers |
| 10/31/2001 | EP1150015A2 Vacuum pump |
| 10/25/2001 | WO2001079701A1 Vacuum pump with two co-operating rotors |
| 10/25/2001 | DE10019066A1 Vacuum pump with two cooperating rotors has drive shaft with drive pulley engaging directly with take-off hear on rotor shaft to form transmission stage |
| 10/11/2001 | WO2001075310A1 Bacterial growth inhibition in a circulation system comprising a compressor |
| 10/11/2001 | US20010027652 High efficiency turbine |
| 10/04/2001 | US20010026759 Liquid ring pump |
| 10/04/2001 | EP1138948A2 Cooling apparatus for vacuum pump |
| 09/27/2001 | US20010024620 Vacuum pumps |
| 09/27/2001 | US20010024617 Cooling apparatus for vacuum pump |