| Patents for F04D 19 - Axial-flow pumps specially adapted for elastic fluids (3,780) |
|---|
| 12/01/1999 | EP0960277A1 Magnetically suspended high velocity vacuum pump |
| 11/25/1999 | WO1999060275A1 Friction vacuum pump with a stator and a rotor |
| 11/25/1999 | WO1999060272A1 Device and method for evacuation |
| 11/24/1999 | EP0959253A2 Vacuum pump |
| 11/24/1999 | CN1236295A Air blower and determining method for its seam shape |
| 11/18/1999 | DE19821634A1 Friction vacuum pump with staged rotor and stator |
| 11/11/1999 | WO1999057441A1 Turbo-molecular pump with metal matrix composite rotor and stator |
| 11/11/1999 | WO1999046508A3 A vacuum pump with magnetic bearing system, backup bearings and sensors |
| 11/10/1999 | CN1234855A Cooler for construction machinery and construction machinery thereof |
| 11/03/1999 | EP0953781A2 Magnetic bearing |
| 11/03/1999 | EP0953774A1 Fan assembly having increased fan blade area |
| 11/03/1999 | EP0834022B1 Axial fan assembly |
| 10/27/1999 | CN2345751Y Mixed-flow ventilation device |
| 10/26/1999 | US5971725 Vacuum pumping device |
| 10/13/1999 | CN2343396Y Vertical axial-flow fan |
| 10/07/1999 | DE19813372A1 Ventilator rotor especially for cooling system of IC engines |
| 10/06/1999 | EP0947706A1 Cooler for construction machinery, and construction machinery |
| 10/05/1999 | US5961291 Turbo vacuum pump with a magnetically levitated rotor and a control unit for displacing the rotator at various angles to scrape deposits from the inside of the pump |
| 09/30/1999 | WO1999049224A1 Axial flow fan |
| 09/30/1999 | WO1999049223A1 Axial flow fan |
| 09/30/1999 | DE19808311A1 Charging device for internal combustion engine with a compressor fan |
| 09/30/1999 | CA2324951A1 Axial flow fan |
| 09/30/1999 | CA2324950A1 Axial flow fan |
| 09/29/1999 | EP0945627A1 Axial flow fan |
| 09/29/1999 | EP0945626A2 A fan, in particular for a cooling system of combustion engines |
| 09/29/1999 | EP0945625A1 Axial flow fan |
| 09/22/1999 | EP0943807A1 Turbomolecular pump |
| 09/22/1999 | CN1229456A Getter pump especially suitable for the use upstream in proximity and coaxially with respect to turbomolecular pump |
| 09/16/1999 | WO1999046510A1 Vacuum pump with magnetic bearing system and back-up bearings |
| 09/16/1999 | WO1999046509A1 Vacuum pump with back-up bearing assembly |
| 09/16/1999 | WO1999046508A2 A vacuum pump with magnetic bearing system, backup bearings and sensors |
| 09/15/1999 | CN2338517Y Explosion-proof axial-flow electric fan for local ventilation |
| 09/14/1999 | US5951266 Evacuating apparatus having interengaging rotors with threads having a decreasing pitch at the exhaust side |
| 09/10/1999 | WO1999032792A3 Molecular vacuum pump |
| 09/07/1999 | US5947683 Axial compresssor stationary blade |
| 09/01/1999 | EP0939228A1 Drive controller for motor-driven high-speed rotating body and method for discriminating type of machine used therefor |
| 09/01/1999 | EP0694699B1 Vacuum pumping apparatus |
| 08/26/1999 | DE19907780A1 Noise dampening, air circulating fan |
| 08/25/1999 | EP0937895A2 Screw fluid machine |
| 08/25/1999 | EP0937894A2 Screw fluid machine and screw gear used in the same |
| 08/25/1999 | CN2334924Y Low-pressure large flow noiseless airplane wing type axial-flow blower fan |
| 08/17/1999 | US5940576 Electronic control unit for a vacuum pump |
| 08/17/1999 | US5938406 Rotor for turbomolecular pump |
| 08/12/1999 | DE19804768A1 Thermal expansion compensation system for rotor bearings in a gas friction pump |
| 08/11/1999 | CN2332836Y Small hand blower |
| 08/03/1999 | US5931640 Oppositely skewed counter-rotating fans |
| 07/28/1999 | EP0931939A2 Vacuum pump |
| 07/27/1999 | US5927944 Fan with blades having integral rotating venturi |
| 07/27/1999 | US5927940 Double-flow gas friction pump |
| 07/20/1999 | US5924841 Turbo molecular pump |
| 07/15/1999 | DE19800895A1 Cooling fan for vehicle |
| 07/14/1999 | EP0929019A1 System for providing pressure regulation in an enclosure under suction from a vacuum pump |
| 07/14/1999 | CN2328819Y Civil draught fan with cooling blade |
| 07/08/1999 | WO1999034118A1 Blower |
| 07/01/1999 | WO1999032792A2 Molecular vacuum pump |
| 07/01/1999 | DE19756837A1 Molekular- und Viskositätspumpe Molecular and viscosity pump |
| 06/23/1999 | CN2325566Y Jetting flow blower fan |
| 06/23/1999 | CN2325565Y Large scale axial flow immersible pump |
| 06/16/1999 | EP0922862A2 Axial fan for ventilating systems |
| 06/10/1999 | WO1999028640A1 Magnetic bearing control device and turbo-molecular pump device |
| 06/08/1999 | US5910695 Damping device for a magnetically supported rotor |
| 06/02/1999 | EP0919726A1 Vacuum pumps |
| 06/02/1999 | EP0918938A1 Friction vacuum pump |
| 06/02/1999 | EP0918934A1 Getter pump especially suitable for the use upstream, in proximity and coaxially with respect to a turbomolecular pump |
| 05/20/1999 | DE19848406A1 Molecular pump with ribbed rotor construction |
| 05/19/1999 | EP0916907A2 Mobile hot air blower |
| 05/18/1999 | US5904470 Counter-rotating compressors with control of boundary layers by fluid removal |
| 05/18/1999 | US5904469 Rotor for turbomolecular pump |
| 05/11/1999 | US5901569 Refrigerator |
| 05/11/1999 | US5901558 Cold trap |
| 05/05/1999 | CN2317344Y Low pressure high-flow soundproofing cooling device axial flow fan |
| 05/05/1999 | CN2317343Y Fire fighting special-purpose fan |
| 04/29/1999 | WO1999020433A1 Gas bearing turbo pump and gas bearing feedthrough |
| 04/28/1999 | CN2316491Y Wear-proof air-distributing ring for vane wheel of centrifugal fan |
| 04/20/1999 | US5895202 Molecular drag pump |
| 04/13/1999 | US5893702 Gas friction pump |
| 04/01/1999 | WO1999015794A1 Cooler for construction machinery, and construction machinery |
| 04/01/1999 | WO1999015793A1 Compound pump |
| 03/24/1999 | CN2311643Y Small-size ventical multi-stage submersible electric pump |
| 03/24/1999 | CN2311642Y Axial-flow draught fan |
| 03/24/1999 | CN2311641Y Sintering ventical axial-flow draught fan |
| 03/23/1999 | US5884589 Cooling apparatus for heat exchanger |
| 03/17/1999 | EP0902190A2 Vacuum pumps |
| 03/10/1999 | EP0900940A2 Method of operating a vacuum pump |
| 03/10/1999 | EP0789815B1 Friction-type vacuum pump with cooling system |
| 03/09/1999 | US5879139 Vacuum pump with gas heating |
| 02/25/1999 | WO1999009581A1 Scanning system with linear gas bearings and active counter-balance options |
| 02/25/1999 | WO1999009317A1 Cold trap with integral gate valve |
| 02/24/1999 | EP0898083A2 Vacuum pumping system |
| 02/24/1999 | EP0898082A1 Turbomolecular pump |
| 02/24/1999 | EP0898081A1 Turbomolecular Pump |
| 02/24/1999 | CN2308750Y Axial ventilator |
| 02/17/1999 | CN2307948Y Combined axial-flow fan with high efficiency and low noise |
| 02/17/1999 | CN2307947Y Axial type fan |
| 02/16/1999 | CA2176194C Fan |
| 02/10/1999 | CN2307136Y Automatic corrector for axial flow fan rotor |
| 02/10/1999 | CN2307135Y Axial flow, centrifugal double functional fan |
| 02/04/1999 | DE19729450A1 Emergency roller bearing |
| 02/03/1999 | CN2306350Y DC fan |
| 02/03/1999 | CN2306349Y Explosion-proof exhaust-type axial-flow ventilator |