Patents for H02K - Dynamo-electric machines (261) |
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08/13/1997 | CN1156918A Shaft fixed vibration motor |
07/29/1997 | US5652470 Brushless DC drive motor with external rotor for use in disc drives and like devices |
02/20/1997 | WO1997006592A1 Generator |
10/22/1996 | CA1338675C Actuator and communication systems |
09/04/1996 | EP0729664A1 Electric motor-wheel with a rotor having a housing enabling an efficient exchange of heat |
01/24/1996 | CN1115511A 感应电动机 Induction motor |
10/31/1995 | CA2144272A1 Alternator systems |
06/15/1995 | WO1995016300A1 Electric motor-wheel with a rotor having a housing enabling an efficient exchange of heat |
01/17/1995 | US5382853 Brushless DC drive motor with external rotor for use in disc drives and like devices |
12/14/1994 | EP0570582B1 Multiple-stator synchronous induction motor |
12/14/1994 | EP0409880B1 Actuator and communication system |
09/28/1994 | EP0482032B1 A fan for an electrically operated machine |
08/10/1994 | EP0609964A2 Adjustable reactance device and method |
12/15/1993 | CN1023172C Multipolar stepping motor |
11/24/1993 | EP0570582A1 Multiple-stator synchronous induction motor |
10/21/1992 | EP0363405B1 Multiphase synchronous-design electric machine energized by permanent magnets |
09/22/1992 | US5149997 Fan for an electrically operated machine |
09/02/1992 | EP0363373B1 Electric motor including gear |
06/30/1992 | CA1304440C Multiphase, synchronous, electrical (rotating) machine excited by a permanent magnet |
03/25/1992 | EP0325609B1 A machine for winding a rotor for a rotating electrical machine |
07/10/1991 | EP0409880A4 Actuator and communication system |
07/10/1991 | CN1013152B Core monitor that uses rotor shaft voltage |
06/25/1991 | US5027023 Electric motor including reduction-gear and circuit |
05/14/1991 | US5015902 Multiphase synchronous permanent magnet electric machine |
04/28/1991 | WO1991007005A1 Multiple-stator synchronous induction motor |
01/30/1991 | EP0409880A1 Actuator and communication system. |
01/15/1991 | WO1991001586A1 A fan for an electrically operated machine |
05/01/1990 | US4921178 Machine for winding a rotor for a rotating electrical machine |
04/18/1990 | EP0363405A1 Multiphase synchronous-design electric machine energized by permanent magnets. |
03/21/1990 | CN1040715A Multipolar stepping motor |
11/07/1989 | CA1262606A1 Method for replacing pcb-containing coolants in electrical induction apparatus with substantially pcb-free dielectric coolants |
10/25/1989 | CN1036671A Compensation circuit for electrical generators |
10/19/1989 | WO1989010030A1 Actuator and communication system |
08/30/1989 | CN1035179A Core monitor that uses rotor shaft voltage |
05/23/1989 | CA1254608A1 D. c. motor |
02/15/1989 | CN1031164A Method and apparatus for converting energy from environment inot electric energy |
01/10/1989 | CA1248430A1 Energy converter |
12/15/1988 | WO1988010022A1 Multiphase synchronous-design electric machine energized by permanent magnets |
11/17/1988 | WO1988009079A1 Electric motor including gear |
05/31/1988 | US4748362 D. C. motor with multi-tooth poles |
11/11/1986 | US4622510 Parametric electric machine |
01/21/1986 | CA1199668A1 Energy conversion system |
07/10/1985 | EP0147860A2 Method for replacing PCB-containing coolants in electrical induction apparatus with substantially PCB-free dielectric coolants |
07/04/1985 | WO1985002951A1 D.c. motor |
07/04/1985 | WO1985002937A1 Method for replacing pcb-containing askarels in electrical induction apparatus with pcb-free dielectric coolants |
05/28/1985 | CA1187924A1 Controlled electric drive (ced) device |
01/29/1985 | CA1181804A1 Parametric electric machine |
07/24/1984 | CA1171449A1 Method and apparatus for securing end winding conductors |
12/27/1983 | CA1159514A1 Static var generator with overvoltage protection for the switched capacitors thereof |
11/02/1983 | EP0092549A1 Parametric electric machine |
06/22/1983 | EP0082033A1 Controlled electric drive (CED) device |
06/07/1983 | US4387317 Method and apparatus for securing end winding conductors |
05/26/1983 | WO1983001871A1 Controlled electric drive device |
05/11/1983 | WO1983001713A1 Parametric electric machine |
05/25/1982 | CA1124301A1 Resin impregnated aromatic polyamide covered glass based slot wedge for large dynamoelectric machines |
07/14/1981 | US4278404 Autoinductive electromagnetic pump and autoinductive direct converter for conducting fluids, particularly liquid metals |
07/07/1981 | US4277733 Slip recovery system for wound rotor motor |
04/07/1981 | CA1098723A1 Apparatus for the combined production of electrical energy and heat |
10/07/1980 | US4226214 Apparatus for the combined production of electrical energy and heat |
07/24/1979 | US4162414 Generator unit with built-in thermally protected voltage regulator |
02/27/1979 | CA1049602A1 Rotor for dynamoelectric machines |