| Patents for F04D 25 - Pumping installations or systems specially adapted for elastic fluids (17,127) |
|---|
| 10/16/1991 | EP0452251A1 Driving- and supply-unit for spray- or surface-cooler |
| 10/16/1991 | CN2086814U Swinging angle regulator of electric fan |
| 10/16/1991 | CN2086813U Stepless swinging angle regulator of oscillating electric fan |
| 10/10/1991 | DE4009925A1 Vorrichtung an drehzahlgeregelten luftgeblaesen Device to speed-controlled luftgeblaesen |
| 10/09/1991 | CN2086332U Steel and lead compound motor fan |
| 10/09/1991 | CN1055225A Multihole vortex-type air exhauster |
| 10/09/1991 | CN1014265B Undersea conveying apparatus of crude oil and natural gas |
| 10/05/1991 | CA2039246A1 Driving and supply unit for a cooler |
| 10/03/1991 | WO1991014870A1 Device for variable-speed fans |
| 10/02/1991 | CN2085910U Multifunctional combustion-supporting device for honeycomb briquet |
| 10/02/1991 | CN2085868U Blow radiator for human surface |
| 10/02/1991 | CN2085867U Manual mini-fan |
| 10/02/1991 | CN1014168B Electric fan with water cooling |
| 10/01/1991 | US5052073 Backpack-type power working machine |
| 09/25/1991 | EP0448443A1 Improved ventilation system |
| 09/25/1991 | CN2085435U Fan type energy saving wind-driven air cleaner |
| 09/25/1991 | CN2085434U Portable electric fan |
| 09/18/1991 | EP0446316A1 Miniature fan. |
| 09/18/1991 | CN2084995U Domestic draught fan |
| 09/18/1991 | CN1054651A Low-noise centrifugal fan |
| 09/11/1991 | EP0445855A1 Improved turbomolecular pump |
| 09/11/1991 | CN2084528U Cooling fan for transformer |
| 09/11/1991 | CN2084527U Hoot driving water pump |
| 09/10/1991 | US5046326 Transport refrigeration system |
| 09/07/1991 | CA2036822A1 Aircraft engine starter integrated boundary bleed system |
| 08/28/1991 | CN2083649U Blade angle adjustable electric fan |
| 08/28/1991 | CN2083648U Mosquito expelling air interchanging fan |
| 08/28/1991 | CN2083647U Eight horizontal direction blowing electric fan |
| 08/28/1991 | CN1054121A Mist spraying electric fan |
| 08/27/1991 | US5042970 Fast recharge compressor |
| 08/27/1991 | US5042269 Fan coil unit with snap securing fan housing |
| 08/21/1991 | CN2083206U Hand-held thin electric fan with music |
| 08/21/1991 | CN1013609B Cylindrical fan of multiblade |
| 08/20/1991 | US5040943 Furnace blower housing and mounting bracket |
| 08/14/1991 | EP0440902A1 Transmission and centrifugal compressor |
| 08/14/1991 | CN2082779U All-mechanical structure combined head-shaking electric fan |
| 08/14/1991 | CN2082778U Input air adjustable permanent-magnet synchronous a.c. electric fan |
| 08/13/1991 | US5038674 Solar ventilation arrangement for passenger compartments |
| 08/07/1991 | CN2082324U Electric fan with two ball vans |
| 08/07/1991 | CN2082323U Hang fan of colur lights glimmering type |
| 08/07/1991 | CN2082322U Multi-purpose console electric fan |
| 07/31/1991 | CN2081909U Axial-flow ventilator with shutter opened by mechanical transmission |
| 07/31/1991 | CN2081908U 吊扇 Ceiling fan |
| 07/30/1991 | US5035586 Portable hand-held blower/vacuum unit with resilient engine mounting system |
| 07/24/1991 | CN2081440U Multipurpose luck fan |
| 07/17/1991 | CN2081004U Compound wind table-floor fan with pitch angle and capable of rotating 360 deg about vertical axis by self air flow reaction |
| 07/17/1991 | CN2081003U Automatic fragrant fan for travelling |
| 07/17/1991 | CN2081002U Combustion-supporting machine for coal stove |
| 07/16/1991 | USRE33638 Mobile fan for poultry farming |
| 07/16/1991 | US5031513 Airflow control system for a pod |
| 07/11/1991 | WO1991010100A1 Room ventilator |
| 07/11/1991 | WO1991010068A1 Burner for motor vehicle heater |
| 07/10/1991 | CN2080581U Tilting adjuster for electric fan |
| 07/10/1991 | CN2080580U Breeze ceiling fan |
| 07/10/1991 | CN2080579U 伞式电风扇 Umbrella fan |
| 07/03/1991 | EP0435291A1 Combined turbomolecular vacuum pump with two shafts and discharge at atmospheric pressure |
| 07/03/1991 | EP0408729A4 Portable water driven high velocity fan |
| 07/03/1991 | CN2080111U Hight efficient mosquito-killing electric fan |
| 07/03/1991 | CN2080110U Pneumatic turbine submersible pump |
| 07/02/1991 | US5028216 Miniaturized direct current fan |
| 07/02/1991 | US5028206 Illuminated ceiling fan |
| 07/02/1991 | CA1285538C Blower for propelling a continuous gas stream |
| 06/27/1991 | WO1991009230A1 Variable speed turbo vacuum pump |
| 06/27/1991 | DE3942647A1 Brenner fuer eine kraftfahrzeug-standheizung Burner for a motor vehicle-condensation heating |
| 06/26/1991 | CN2079675U Explosion -proof dual-speed local ventilator |
| 06/25/1991 | US5026251 Compact fan unit for automobile |
| 06/25/1991 | US5025629 High pressure ratio turbocharger |
| 06/12/1991 | EP0431742A2 Turbo-air freshener |
| 06/11/1991 | US5022900 Forced ventilation filtration device |
| 06/05/1991 | CN2078385U Roof ventilator |
| 06/05/1991 | CN1051965A Induced draft fan |
| 06/04/1991 | US5021696 Cooling fan with reduced noise for variable speed machinery |
| 05/29/1991 | CN2077917U Energy saving fans used for wheel-kiln doors specially |
| 05/28/1991 | US5018951 Portable electrical fan |
| 05/28/1991 | US5018612 Temperature-controlled fan fluid coupling |
| 05/15/1991 | EP0427145A1 Pump with driving motor |
| 05/15/1991 | CN2077052U High-temp. axial flow fan |
| 05/08/1991 | DE3933868A1 Automobile ventilation fan with electronically-commutated drive motor - has fan wheel formed by moulded plastics motor armature |
| 05/08/1991 | CN2076619U Scavenger fan for killing mosquitos |
| 05/08/1991 | CN2076314U Scavenger fan for killing mosquitos |
| 05/07/1991 | US5013224 Fan assembly |
| 05/07/1991 | US5013214 Portable water driven high velocity fan |
| 05/02/1991 | WO1991005956A1 Fan |
| 05/02/1991 | WO1991005673A1 Airflow control system for a pod |
| 05/01/1991 | CN2076177U Steering gear for ceiling fan |
| 05/01/1991 | CN2076176U Miniature ceiling fan |
| 04/30/1991 | CA1283514C Lawn/garden blower/vacuum |
| 04/24/1991 | CN2075720U Axial self-sealing fan |
| 04/24/1991 | CN2075719U 电磁风机 Electromagnetic Fan |
| 04/24/1991 | CN2075718U Micro wind fan |
| 04/24/1991 | CN2075717U Seiling electric fan for bus |
| 04/24/1991 | CN2075716U 多用途电风扇 Multipurpose fans |
| 04/24/1991 | CN1050925A Long axis series boil combustion-supporting suction blower |
| 04/24/1991 | CN1012447B 吊扇 Ceiling fan |
| 04/18/1991 | WO1991005169A1 Miniature fan |
| 04/17/1991 | CN2075272U Ball type table fan with double vanes |
| 04/17/1991 | CN2075271U Multipurpose miniature health fan |
| 04/17/1991 | CN2075270U Air blower for ratiation of motor |
| 04/17/1991 | CN2075269U Pump driven by wind |
| 04/17/1991 | CN2075268U High-efficient low-noise axial-flow fan |