Patents for H02K 29 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes, semiconductor devices (10,091) |
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10/21/1987 | EP0241531A1 Device for automatic control of direct current motors |
10/20/1987 | US4701653 Disk drive with internal brake and static discharge |
10/20/1987 | US4701650 Brushless motor with phase cancelling leads for rotational speed detector pattern |
10/20/1987 | US4701649 Brushless motor with symmetrical leads for preventing signal distortion |
10/15/1987 | DE3611978A1 Brushless DC motor |
10/13/1987 | US4700189 Linear resolver |
10/13/1987 | US4700098 D.C. motors with unequal pole spacing |
10/06/1987 | US4698563 Semiconductor electric motor having a rotary transformer to excite a rotor |
10/06/1987 | US4698542 Brushless direct current motor system |
10/06/1987 | US4698538 dc brushless electromagnetic rotary machine |
09/30/1987 | EP0239261A2 Improvements in or relating to drives for clothes washing machines |
09/30/1987 | CN86108648A Lightweight high power electromagnetic transducer |
09/23/1987 | EP0238253A2 Motion control system |
09/16/1987 | EP0236467A1 Electric motor. |
09/15/1987 | US4694210 Brushless DC motor and sensorless drive arrangement therefor |
09/08/1987 | US4692676 Sewing machine driving apparatus |
09/08/1987 | US4692646 Rotating electric motor with reduced cogging torque |
09/08/1987 | US4692645 Rotating electric motor with reduced cogging torque |
09/08/1987 | US4691746 Flat windings, coil forms, and winding method |
09/02/1987 | EP0234663A1 Brushless d.c. motor |
09/02/1987 | EP0234587A2 Two-phase brushless motor |
09/01/1987 | US4689973 Laundry machine drive |
08/27/1987 | DE3700774A1 Permanent-magnet-excited dynamo-electric machine having a slotted laminated core |
08/26/1987 | EP0233540A1 Arrangement and circuit for the electrical commutation of field windings |
08/26/1987 | EP0233326A1 Disk-type brushless fan motor |
08/25/1987 | US4689532 Ferritic sensor, self-controlled synchronous motor |
08/19/1987 | EP0232834A1 Multipole direct current motor |
08/19/1987 | EP0232402A1 D.c. electric motor. |
08/18/1987 | US4687977 Electronically controlled motor and methods of operating same |
08/18/1987 | US4687961 Polyphase DC motor with sensor poles |
08/13/1987 | WO1987002527A3 Device for automatic control of direct current motors |
08/12/1987 | CN86108031A Electrically powered apparatus |
08/11/1987 | US4686400 Small sized fan motor |
08/05/1987 | EP0230639A2 Lightweight high power electromagnetic transducer |
08/04/1987 | US4684857 Optical excitation electromagnetic motor |
07/30/1987 | WO1987004576A1 Magnetic rotary device |
07/29/1987 | EP0229911A1 Electrically powered apparatus |
07/21/1987 | US4682065 Molded plastic motor housing with integral stator mounting and shaft journalling projection |
07/14/1987 | US4679313 Method of making a servo motor with high energy product magnets |
07/14/1987 | CA1224235A1 Brushless d.c. dynamoelectric machine having ferrite material magnetic circuit |
07/07/1987 | US4678974 Pulsating current electromotor without commutator |
07/02/1987 | DE3546512A1 Method for producing a wire coil |
07/01/1987 | EP0226626A1 Electric pump |
07/01/1987 | CN86108448A Permanent magnet exciting synchronous electric motor |
06/30/1987 | US4677332 Electric motor having auxiliary portions distributed at a pitch which is an odd number sub-multiple of the pitch of active portions |
06/30/1987 | US4677331 Synchronous electrical machine with permanent magnet excitation |
06/19/1987 | DE3543809A1 Permanentmagneterregte synchronmaschine Permanent-magnet synchronous machine |
06/18/1987 | WO1987003648A1 Synchronous machine with permanent magnet excitation |
06/10/1987 | EP0153338B1 Electric machine |
06/09/1987 | US4672274 Motor control circuit for video tape recorders |
06/09/1987 | US4672253 Permanent magnet electrical machine with reduced cogging |
06/09/1987 | US4672250 Drive motor bearing apparatus |
06/04/1987 | DE3542542A1 Disc drive |
06/02/1987 | US4670696 Variable speed variable reluctance electrical machines |
05/27/1987 | EP0223678A1 Electronically commutated DC motor |
05/27/1987 | EP0223676A1 Rotation driving system for at least one magnetic disc, and electrical motor included in this system |
05/27/1987 | EP0223516A2 Magnetronic motor |
05/27/1987 | EP0223093A1 Brushless motor |
05/26/1987 | US4668898 Electronically commutated motor |
05/26/1987 | US4668884 Brushless motor |
05/26/1987 | CA1222298A1 Reactance-commutated high resolution servo motor system |
05/21/1987 | WO1987003149A1 Cross-flow cooling fan device |
05/21/1987 | WO1987003049A1 Cross-flow cooling fan device |
05/19/1987 | US4667137 Single excitation pulse brushless DC motor |
05/19/1987 | US4667122 Tachogenerator for speed control of electric motors |
05/13/1987 | EP0221628A2 Variant-pole electric motor |
05/13/1987 | EP0221594A1 Motor with a direct-current supply |
05/13/1987 | EP0221459A2 Axial-flow fan apparatus |
05/12/1987 | US4665331 Brushless DC micromotor |
05/06/1987 | EP0220447A1 Electric motor, in particular an external-rotor motor with permanent-field magnets |
04/29/1987 | EP0219497A1 Pulsating current electromotor without commutator |
04/23/1987 | WO1987002527A2 Device for automatic control of direct current motors |
04/22/1987 | EP0218915A1 Flanged support, especially for a laterally and axially pre-loaded bearing assembly of an electric motor with an external rotor |
04/21/1987 | US4659951 Brushless blower motor with load proportional cooling for control circuitry |
04/15/1987 | EP0218017A1 Electronically commutated motors |
04/14/1987 | US4658312 Disk storage drive |
04/14/1987 | US4658162 Printed coil unit for small size actuator |
04/07/1987 | US4656381 Magnetic pole structure having aternate poles extending from a point of bases, for a rotary electric machine |
04/07/1987 | US4656376 Motor-compressor unit with offset starting torque |
04/01/1987 | EP0216252A2 Bearing flange for a braced single-sided and braced axial stored external rotor motor |
04/01/1987 | EP0216202A1 Electric motor |
04/01/1987 | CN86105102A Laser scanning motor having a rotating polygonal mirror and method of mfg. the same |
03/31/1987 | US4654566 Control system, method of operating an electronically commutated motor, and laundering apparatus |
03/31/1987 | CA1219894A1 Brushless motor and method of winding it |
03/26/1987 | WO1987001879A1 Electric motor |
03/24/1987 | US4652820 Combined position sensor and magnetic motor or bearing |
03/19/1987 | DE3532510A1 Three-phase tachogenerator |
03/18/1987 | EP0131632B1 Three-phase brushless motor |
03/18/1987 | CN86105052A Direct current electric motor |
03/18/1987 | CN85106443A Rotating electric motor |
03/17/1987 | US4651066 Ferrite permanent magnet electrical machine and the application thereof within vehicle traction drives |
03/17/1987 | US4651041 Electric motor |
03/11/1987 | CN85106983A Electrical motor with permanent magnet rotor |
03/03/1987 | US4647803 Electric motor, particularly a brushless direct current motor |
02/26/1987 | WO1987001251A1 Brushless motor |
02/26/1987 | WO1987001247A1 D.c. electric motor |
02/26/1987 | DE3627046A1 Electrical machine, such as a motor or generator |
02/25/1987 | CN85105975A Rotating electric motor |
02/24/1987 | US4645961 Dynamoelectric machine having a large magnetic gap and flexible printed circuit phase winding |
02/24/1987 | US4644643 Method of electrically interconnecting a laminated printed circuit by use of a compressed, solder-plated connector pin |