| Patents for F04D 19 - Axial-flow pumps specially adapted for elastic fluids (3,780) |
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| 12/19/2000 | US6161576 Integrated turbo pump and control valve system |
| 12/12/2000 | US6158986 Compact vacuum pump |
| 11/28/2000 | US6152699 Cooling apparatus for electrical equipment |
| 11/22/2000 | CN1058774C Axial-flow blower with guiding in channel |
| 11/21/2000 | US6149382 Vacuum pump with shaft bearing |
| 11/16/2000 | WO2000068576A1 Reversing shuttle for air handling device |
| 11/15/2000 | CN2406087Y Structure-improved multi-wing fan |
| 10/25/2000 | EP1046821A2 Magnetic bearing protective device and turbomolecular pump |
| 10/24/2000 | US6135709 Vacuum pump |
| 10/24/2000 | US6135098 Flow-through controllable air charger |
| 10/12/2000 | WO2000060276A1 Seal-gas valve device |
| 10/12/2000 | WO2000060241A1 Rotor fixture for a friction vacuum pump |
| 10/12/2000 | DE19915983A1 Vakuumpumpe mit Gaslagerung Vacuum pump with gas storage |
| 10/11/2000 | EP1043505A2 Vacuum pump with gas bearings |
| 10/05/2000 | WO2000058639A1 Magnetic bearing device and vacuum pump |
| 10/05/2000 | WO2000058628A1 Vacuum pump |
| 10/05/2000 | DE19915307A1 Turbomolecular friction vacuum pump, with annular groove in region of at least one endface of rotor |
| 10/05/2000 | DE19914282A1 Locking gas valve device, with pressure reducer between inlet and narrow point |
| 10/04/2000 | EP1041288A2 Magnetic bearing device and a vacuum pump equipped with the same |
| 10/04/2000 | EP1041287A2 Vacuum pump |
| 09/27/2000 | EP1039138A2 Vacuum pump with inverted motor |
| 09/27/2000 | EP1039137A2 Turbo-molecular pump |
| 09/27/2000 | CN2398453Y Smoke exhausting machine |
| 09/27/2000 | CN1056914C Combined driving molecular pump |
| 09/26/2000 | US6123522 Turbo molecular pump |
| 09/20/2000 | EP1036951A1 Magnetic bearing control device and turbo-molecular pump device |
| 09/20/2000 | CN2397290Y Forced local ventilator |
| 09/20/2000 | CN1266949A Sand-discharging water pump |
| 09/14/2000 | WO2000053928A1 Vacuum device |
| 09/12/2000 | US6116856 Bi-directional fan having asymmetric, reversible blades |
| 08/29/2000 | US6109864 Vacuum pumps |
| 08/24/2000 | WO2000049342A2 Low speed cooling fan |
| 08/23/2000 | EP1030062A2 Turbo-molecular pump |
| 08/22/2000 | US6106223 Multistage vacuum pump with interstage inlet |
| 08/22/2000 | US6105206 Portable electrically powered blower apparatus |
| 08/10/2000 | WO2000046508A1 Dual inlet vacuum pumps |
| 08/03/2000 | WO2000045054A1 Vacuum pump device |
| 08/02/2000 | EP1024294A2 Motor and turbo-molecular pump |
| 08/01/2000 | US6095754 Turbo-Molecular pump with metal matrix composite rotor and stator |
| 07/13/2000 | WO2000041445A1 Plasma vacuum pump |
| 07/13/2000 | DE19860828A1 Ion implantation equipment used for semiconductor manufacture, includes main controller which detects current level to generate control signal based on which ion implantation turbine pump operation is controlled |
| 07/12/2000 | EP1017944A1 Compound pump |
| 07/11/2000 | US6088508 Method of operating vacuum pump |
| 06/20/2000 | US6078120 Vacuum pump with magnetic bearing system, backup bearings and sensors |
| 06/15/2000 | DE19857453A1 Device for monitoring temperatures in vacuum pump rotors includes a heatable temperature sensor fitted at a point in the vacuum pump to allow its setting to compare its Knudsen flow with that around the rotor. |
| 06/13/2000 | US6074171 Getter pump especially suitable for the use upstream, in proximity coaxially with respect to a turbomolecular pump |
| 06/13/2000 | US6074165 Vacuum pump with magnetic bearing system and back-up bearings |
| 06/06/2000 | US6071092 Vacuum pump with improved back-up bearing assembly |
| 06/06/2000 | US6071085 Gas ballast system for a multi-stage positive displacement pump |
| 05/31/2000 | EP1004775A2 Turbomolecular pump and vacuum apparatus |
| 05/31/2000 | EP1004135A1 Scanning system with linear gas bearings and active counter-balance options |
| 05/24/2000 | EP0697069B1 Friction vacuum pump with pump sections of different designs |
| 05/16/2000 | US6062810 Turbomolecular pump |
| 05/03/2000 | EP0997646A2 Vacuum pump |
| 04/27/2000 | DE19948074A1 Air duct for motor vehicle radiator cooling fan comprises cylindrical outer cowl supporting motor mounting bracket on curved flow-rectifying spokes of airfoil section |
| 04/26/2000 | CN2375789Y Precast roof ventilator |
| 04/18/2000 | US6050782 Magnetically suspended high velocity vacuum pump |
| 04/13/2000 | WO2000020763A1 Friction vacuum pump |
| 04/13/2000 | WO2000020762A1 Friction vacuum pump with a stator and a rotor |
| 04/13/2000 | WO2000020736A1 Flow-through controllable air charger |
| 04/13/2000 | DE19846189A1 Reibungsvakuumpumpe Friction vacuum pump |
| 04/13/2000 | DE19846188A1 Reibungsvakuumpumpe mit Stator und Rotor Friction vacuum pump with stator and rotor |
| 03/29/2000 | EP0988486A1 Flange connection |
| 03/22/2000 | CN2370195Y Axial flow blade pump |
| 03/22/2000 | CN1248314A Blower |
| 03/16/2000 | DE19840843A1 Ventilator rotor especially for cooling system of IC engines |
| 03/15/2000 | EP0985828A1 Method and device to prevent deposits in a turbomolecular pump having magnetic or gas bearings |
| 03/14/2000 | USRE36610 Evacuation apparatus and evacuation method |
| 03/08/2000 | CN2367805Y 风机 Fan |
| 03/01/2000 | EP0982500A2 Vacuum pump and vacuum apparatus |
| 03/01/2000 | EP0982475A1 Axial flow turbomachine with shrouded blading |
| 03/01/2000 | EP0981694A2 A vacuum pump with magnetic bearing system, backup bearings and sensors |
| 03/01/2000 | EP0981691A1 Vacuum pump with back-up bearing assembly |
| 03/01/2000 | EP0981690A1 Vacuum pump with magnetic bearing system and back-up bearings |
| 02/29/2000 | US6030189 Friction vacuum pump with intermediate inlet |
| 02/29/2000 | US6030181 Vacuum apparatus and a method of controlling a suction speed thereof |
| 02/16/2000 | EP0979947A2 Turbomolecular pump |
| 02/16/2000 | EP0979349A1 Cooling device for a vehicle combustion motor |
| 02/08/2000 | US6023115 Magnetic bearing apparatus with radial position correcting electromagnet |
| 02/08/2000 | US6022195 Electronically controlled vacuum pump with control module |
| 02/01/2000 | US6019581 Friction vacuum pump with cooling arrangement |
| 01/26/2000 | EP0974756A2 Vacuum pump and vacuum apparatus |
| 01/26/2000 | CN2360649Y Adjustable crank of swinging mechanism |
| 01/26/2000 | CN2360648Y Axial ventilator with wide root arc torsional overlapped impeller |
| 01/19/2000 | EP0972938A2 Gas ballast device for a multistage positive displacement pump |
| 01/19/2000 | CN2359502Y Axial-flow-type fan device |
| 01/13/2000 | DE19931401A1 Vacuum pump and pump apparatus for semi-conductor manufacturing machines |
| 01/13/2000 | DE19831123A1 Gasballasteinrichtung für mehrstufige Verdrängerpumpen Gas ballast for multi-stage displacement pumps |
| 01/06/2000 | WO2000000746A1 Turbo-molecular pump |
| 01/05/2000 | EP0969211A1 Blower |
| 01/05/2000 | CN2357161Y Side shifting type axial-flow ventilating fan for mine |
| 01/05/2000 | CN2357132Y Radial shaft mixed-flow ventilator for mine |
| 12/29/1999 | EP0967395A2 Turbomolecular pump |
| 12/29/1999 | EP0967394A1 Turbo molecular pump |
| 12/22/1999 | EP0965761A2 Turbo molecular pump |
| 12/22/1999 | EP0964984A1 Fan ring seal |
| 12/09/1999 | DE19901340A1 Reibungsvakuumpumpe mit Chassis, Rotor und Gehäuse sowie Einrichtung, ausgerüstet mit einer Reibungsvakuumpumpe dieser Art Friction vacuum pump with chassis, rotor and housing, as well as device equipped with a friction vacuum pump of this kind |
| 12/09/1999 | DE19729450C2 Wälzlager, insbesondere Notlager für magnetisch gelagerte Vakuumpumpen Rolling particular shakedown for magnetically levitated vacuum pumps |
| 12/08/1999 | EP0962264A2 Compact vacuum pump |
| 12/02/1999 | WO1999061799A1 Frictional vacuum pump with chassis, rotor, housing and device fitted with such a frictional vacuum pump |