Patents
Patents for F04D 25 - Pumping installations or systems specially adapted for elastic fluids (17,127)
08/1988
08/10/1988CN87207853U Cold and moist wind generator using an electric fan
08/10/1988CN87100367A Double use pedestal of scavenger fan
08/02/1988US4761576 Motor driven air moving apparatus for high speed, constant duty operation
07/1988
07/27/1988CN87206370U Furnace top blower for couple type open hearth furnace
07/27/1988CN87205953U Device for adjusting swing angle of electric fan
07/20/1988CN86108762A Ring-type electric fan
07/20/1988CN86104146A 三维显示灯扇 Three-dimensional display lights fan
07/19/1988US4757587 Propeller construction of an electric fan
07/06/1988EP0273563A1 Latch for ventilator shutter plate
07/06/1988CN87211890U Console model ceiling fan holder with continuous power supply
06/1988
06/23/1988DE3739871C1 Fan
06/08/1988CN87200458U 阵列式电风扇 Array fans
05/1988
05/31/1988US4747749 Machine for compressing a fluid, having a plurality of compression stages in series
05/25/1988CN87211826U Folding mobile-frame used for miny pendent fan
05/25/1988CN87210150U Medical electric fan being good for health
05/25/1988CN87206532U Floor fan with clothes-hooks
05/24/1988US4746266 Radial blower
05/18/1988CN87210273U Twin-door and two-direction closed domestic air changing fan
05/18/1988CN87200349U Musical electric fan
05/11/1988CN87201470U Automatic safety exhaust fan
05/11/1988CN86205460U Explosion-proof and safety exhanot air fan
05/10/1988US4743174 Centrifugal compressor
05/10/1988US4743173 Slide beating unit for small size fan
05/04/1988CN87211729U Combined lighting installation for wind curtain
04/1988
04/27/1988CN87202092U Household smoke hood and stovepipe ventilator
04/20/1988CN86211025U Multifunctional energy-saving electric fan and its multifunctional speeder
04/20/1988CN86106581A Oscillating blade type electric fan
04/06/1988CN87201435U Automatic covering unit of exhaust fan
04/05/1988US4735550 Turbo molecular pump
03/1988
03/30/1988EP0261490A1 Radial fan
03/30/1988CN87212926U Motor fan with cast blades
03/30/1988CN87202488U Electric fan generating natural wind
03/30/1988CN86106360A Free angle adjuster for electric fan
03/29/1988US4734017 Air blower
03/29/1988US4734015 Axial-flow fan
03/23/1988CN87208680U Folding device for pendant fan
03/22/1988US4732539 Oscillating fan
03/16/1988CN87203286U Multifunction air inhaler for civil use
03/15/1988US4730981 Ceiling fan
03/15/1988US4730980 Air supply system
03/09/1988EP0259182A2 Air movement apparatus
03/09/1988CN87208488U Water-cooled, atomized, humidified axial cooling fan
03/09/1988CN87207105U Device able to make fan returning head tilting and wind supply directing
03/08/1988US4729725 Mounting system for selectively mounting ceiling fans
03/08/1988US4729724 Blower for propelling a continuous gas stream with inflatable gas seals
02/1988
02/10/1988CN86209370U Energy-saving electric fan
02/03/1988CN87206835U Hanging fan with lamp
02/03/1988CN87203864U Fan swinging angle control
01/1988
01/27/1988CN87201256U Infrared rays remote controlled speed varying device
01/27/1988CN87200454U Portable dual-purpose instrument of fan and razor
01/19/1988US4720241 Ceiling fan
12/1987
12/30/1987WO1987006981A3 Centrifugal superchargers
12/30/1987CN87203734U Electric blower with function of dust-collector
12/22/1987US4714230 Convertible suspension mounting system for ceiling fans
12/16/1987CN87102745A 电风机 Electric Fans
12/16/1987CN86210433U Electronic clock for electric fan and natural wind electronic controller
12/16/1987CN86208381U Energy saving fan for motor vehicles
12/05/1987CN86209499U Pendent electric fan with fixed bearing cap
12/03/1987DE3543833A1 Roof ventilator
12/01/1987US4709666 Regulatable fan drive
11/1987
11/25/1987EP0246325A1 Cross-flow cooling fan device
11/25/1987CN87202338U Regulator for controlling swaying angle of electric fan
11/19/1987WO1987006981A2 Centrifugal superchargers
11/17/1987US4706792 Fluid friction clutch
11/11/1987EP0244487A1 Cross-flow cooling fan device
11/11/1987CN86210142U Exhaust fan
11/11/1987CN86209098U Control mechanism for oscillating angle of electric fan
11/07/1987CN86206729U Governor of electric fan
11/07/1987CN86203204U Oscillating angle regulator of household electric fan
11/04/1987CN87202042U Fan vane mesh hood with metal plate mesh
11/04/1987CN87200997U Variable wing ceiling fan
10/1987
10/22/1987DE3612167A1 Fan arrangement, especially for the cooling of water-cooled internal combustion engines
10/21/1987CN87202659U Miniature, domestic, power-saving electric fan
10/21/1987CN87200806U Automatic speed-regulating device for electric fan
10/14/1987EP0241105A2 Electronically programmable universal brushless dc fan with integral tracking and locked rotor protection
10/14/1987CN87200673U Front guard for electric fan
10/03/1987CN86204503U Explosion-proof pendent fan
10/03/1987CN86204048U Oscillation angle adjustor for table fan
10/01/1987DE3708663A1 Turbomolecular pump
09/1987
09/30/1987CN86207735U Intermittently timed electric fan
09/29/1987US4696450 Fan motor assembly support frame
09/23/1987CN86210317U Portable electric fan with foldable blades
09/15/1987US4693673 Ceiling fan
09/12/1987CN86206508U Multifunction electric fan
09/12/1987CN86204595U Indoor air harmonious machine with 360 deg. rotating
09/09/1987CN87202611U Lowcost electric fan made of melamine resin
09/09/1987CN86208820U Electric fan with guide blades
09/08/1987US4692096 Ceiling fan
09/02/1987CN86209966U Oscillation adjusting unit in domestic electric fan
08/1987
08/25/1987US4688989 Gas rotary machine
08/18/1987US4687908 Convection blower for conventional electric ovens
08/18/1987US4687411 Speed increasing gear for a centrifugal compressor
08/12/1987CN85205314U Electric fan oscillating unit with arbitrary adjusting range
07/1987
07/29/1987CN86206153U Pendent fan with lamps
07/29/1987CN86204031U Electric fan with two sets of blades oscillated in the opposite direction
07/22/1987CN86208395U Miniature electric fan
07/22/1987CN85203592U Adjustable swinging head unit for electric fan
07/15/1987EP0228892A2 A blower assembly
07/15/1987CN86210960U Rotating disc for electric fan
07/07/1987US4678014 Inflator/deflator with molded housing