| Patents for F04D 25 - Pumping installations or systems specially adapted for elastic fluids (17,127) |
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| 08/17/1994 | CN2174582Y Oscillating apparatus for electric fan |
| 08/10/1994 | CN2173873Y Electric fan with adjustable air grate |
| 08/09/1994 | US5336046 Noise reduced centrifugal blower |
| 08/04/1994 | WO1994017306A1 Fan with secondary air passage for motor cooling |
| 08/04/1994 | WO1994017304A1 Blood pump with disposable rotor assembly |
| 08/04/1994 | CA2154248A1 Blood pump with disposable rotor assembly |
| 08/03/1994 | CN2173317Y Smoke stop plate for magnetic controlling exhauster |
| 08/03/1994 | CN2173316Y Phoneme electric fan |
| 08/03/1994 | CN1090378A Ventilating fan |
| 08/02/1994 | US5334004 Compressor or turbine type rotary machine for compressing or expanding a dangerous gas |
| 07/27/1994 | EP0607515A1 Electrically driven air pump |
| 07/26/1994 | US5332364 Rotatable ceiling fan accessory |
| 07/26/1994 | CA2026471C Electrically driven, circumferentially supported fan |
| 07/20/1994 | CN2172363Y Multi-angle adjustable revolving device for electrical fan |
| 07/14/1994 | DE4300401A1 Electric fan for vehicle heating or air-conditioning system |
| 07/14/1994 | DE4243143A1 Water tornado spiral for low wear drive of pumps and turbines |
| 07/13/1994 | EP0606108A1 Bi-directional axial-flow blower |
| 07/13/1994 | EP0606054A2 Conveying device having an impellor for propelling gases or liquids in a flow channel |
| 07/13/1994 | CN2171709Y Water pump structure |
| 07/13/1994 | CN2171708Y Electric fan continous blowing at the same time all around |
| 07/13/1994 | CN2171707Y Hanging fan |
| 07/13/1994 | CN2171706Y Fan device for machine tool |
| 07/12/1994 | US5327725 Exhaust gas recirculation system for a turbocharged engine |
| 07/06/1994 | EP0605071A1 Tubing with threaded tubes and a connection sleeve |
| 07/06/1994 | CN2171022Y Ceiling fan with lamp |
| 07/05/1994 | US5326430 Cooling microfan arrangements and process |
| 06/30/1994 | DE4339255A1 Air cycle air conditioning system esp. for use in ground based transportation vehicle |
| 06/29/1994 | EP0603694A1 Vacuum system |
| 06/29/1994 | CN2170398Y Omnidirectional electric fan |
| 06/29/1994 | CA2112424A1 Pipeline with threaded pipes and a sleeve connecting the same |
| 06/23/1994 | WO1994013893A1 Exhaust fan |
| 06/23/1994 | CA2151942A1 Exhaust fan |
| 06/22/1994 | EP0602491A1 Transmission and compressor system |
| 06/22/1994 | EP0602094A1 A hat-mounted fan |
| 06/22/1994 | CN2169714Y Multifunctional thermal static air exchanger |
| 06/22/1994 | CN2169713Y High effect blower |
| 06/22/1994 | CN2169712Y Pneumatic fan |
| 06/16/1994 | DE4241406A1 Fan housing esp. for sec. fan in IC engines with regulated three-way catalyser - has first housing part for reception of electric motor with second coaxially fitted housing part for reception of at least one fan impeller driven by motor |
| 06/15/1994 | CN2168970Y Electric fan with a rotary shutter |
| 06/15/1994 | CN2168969Y Air blower |
| 06/15/1994 | CN2168968Y Hanging fan with changeable colour light |
| 06/08/1994 | EP0575401A4 Dual fan cooling system |
| 06/08/1994 | CN2168106Y Flower-basket type multiaspect air-supplying electric fan |
| 06/01/1994 | DE4317783C1 Sealing system for electrical fan motor designed as outside rotor motor - has fan blades arranged at rotor, and stator of motor is arranged essentially inside cup-shaped reception section of fan cowl of separately vented motor |
| 06/01/1994 | CN2167226Y Two-direction vantilation fan |
| 06/01/1994 | CN2167225Y Two-stage air-cooled axial vantilation fan for roller kiln |
| 06/01/1994 | CN1087402A Method and apparatus for compression of gas medium |
| 05/26/1994 | DE4239138A1 Multiple arrangement of compressors - has one compressor unit driven by turbine unit separated from transmission system |
| 05/25/1994 | EP0598684A1 Electric fan |
| 05/25/1994 | CN2166267Y Adjustable wide-angle fan front screen |
| 05/25/1994 | CN2166266Y Intelligent infrared follow-up head-oscillating unit for fan |
| 05/25/1994 | CN2166265Y Charging micro-electric fan |
| 05/18/1994 | CN2165275Y Adjustable oscillating angle range auto-oscillating device |
| 05/18/1994 | CN2165274Y Stepless controlled oscillating mechanism for electric fan |
| 05/18/1994 | CN2165273Y Double shell axial-flow main ventilator for mine |
| 05/18/1994 | CN2165272Y Magnetic fan |
| 05/18/1994 | CN2165271Y 扬场风机 Winnowing fan |
| 05/17/1994 | US5311857 Structure smoke exhauster |
| 05/11/1994 | CN1086587A 压缩机 Compressor |
| 05/10/1994 | US5310313 Swinging type of electric fan |
| 05/10/1994 | US5310311 Air cycle machine with magnetic bearings |
| 04/28/1994 | WO1994009276A1 Four wheel air cycle machine |
| 04/27/1994 | CN2163258Y Energy saving dual-purpose blower |
| 04/27/1994 | CN2163257Y Swivel fan |
| 04/27/1994 | CN2163256Y Box type electrical fan |
| 04/26/1994 | US5306123 Noise isolating rotor for air handler motor |
| 04/20/1994 | EP0592803A1 Gear driven multi-shaft compressor with return stages and radial-expander |
| 04/20/1994 | CN2162548Y Fan without power for travelling |
| 04/19/1994 | US5304040 Tri-pod portable fan |
| 04/19/1994 | US5304035 Portable necklace fan |
| 04/14/1994 | DE4309308C1 Ventilation system for power electronic appts. housing - has 2 overlying ventilation units inserted between upper and lower halves of function module stack. |
| 04/13/1994 | EP0592059A1 Process and system for compressing a gas |
| 04/13/1994 | EP0591665A1 Casing for an electrical apparatus |
| 04/13/1994 | EP0408729B1 Portable water driven high velocity fan |
| 04/13/1994 | CN2161757Y Ventilator for water turbine |
| 04/12/1994 | US5302089 Fluid rotating apparatus |
| 04/12/1994 | US5302083 Ceiling fan with neon light |
| 04/12/1994 | US5301771 Oil channeling in a centrifugal compressor transmission |
| 04/08/1994 | CA2107300A1 Method and apparatus for compressing a gaseous medium |
| 04/06/1994 | CN1084940A Air scavenger fan |
| 04/05/1994 | US5299554 Burner for a motor vehicle heater |
| 03/30/1994 | EP0589300A1 Radial blower |
| 03/29/1994 | US5297936 Coupling fan |
| 03/29/1994 | CA2026411C Fail-safe blower drive for roof mounted kitchen hood grease exhaust blowers |
| 03/22/1994 | US5296775 Cooling microfan arrangements and process |
| 03/22/1994 | US5295811 Portable fan with electrical control retaining stand |
| 03/17/1994 | WO1994005913A1 Compressor |
| 03/17/1994 | CA2144181A1 Compressor |
| 03/16/1994 | CN2158935Y Electric cooling fan |
| 03/09/1994 | EP0585911A1 Two stage primary dry pump |
| 03/08/1994 | US5292228 Ceiling fan support |
| 03/02/1994 | EP0585105A1 Internal combustion engines with exhaust gas recirculation |
| 03/02/1994 | CN2158005Y Oscillating head mechanism of electric fan |
| 03/02/1994 | CN2158004Y Swinging angle-adjustable oscillating head of electric fan |
| 03/02/1994 | CN2158003Y Efficiency energy-saving fan specially for warming machine use |
| 03/02/1994 | CN1083184A Rotary blade-oscillating electric fan |
| 02/24/1994 | DE4143383A1 Axial fan for condenser in vehicle air conditioning system |
| 02/23/1994 | CN2157343Y Controlling box for floor fan |
| 02/23/1994 | CN2157342Y Fire-retardant discharge fan |
| 02/23/1994 | CN2157341Y Single-air inlet, centrifugal and low noise ventilator |