Patents for H02K 29 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes, semiconductor devices (10,091) |
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08/10/1988 | CN87204668U Single-pole brushless dc motor |
08/09/1988 | US4763053 Electronically commutated DC machine and use thereof |
08/09/1988 | US4763051 Driving and positioning system |
08/09/1988 | US4763050 Driving and positioning system |
08/02/1988 | US4761590 Electric motor |
08/02/1988 | US4761576 Motor driven air moving apparatus for high speed, constant duty operation |
07/26/1988 | US4760298 Magnetic disk motor having a cup-shaped rotor |
07/20/1988 | EP0274638A1 Optical modulator for a radiation pyrometer |
07/19/1988 | US4758768 12-step commutation device for an electric motor |
07/19/1988 | US4758751 Thin type DC brushless motor |
07/12/1988 | US4757222 1-phase energized disk-type brushless motor |
07/05/1988 | US4755728 Single-phase semiconductor electric motor and fan using the same |
07/05/1988 | US4755701 Brushless motor having a frequency signal generator and a pulse signal generator |
07/05/1988 | US4755699 Enclosed miniature motor |
06/30/1988 | WO1988004787A1 Rotary device |
06/28/1988 | US4754207 Electromagnets with adjacent groups of electromagnets having different switching phases |
06/21/1988 | USRE32702 Brushless D.C. motor assembly |
06/15/1988 | CN87214461U Improved ac permanent magnetic brushless servomotor |
06/14/1988 | US4751486 Magnetic rotation apparatus |
06/14/1988 | US4751448 Armature winding for a static converter-fed electrical induction machine |
06/14/1988 | US4751415 Brushless DC motor with means for compensating ripple torque |
06/14/1988 | US4751413 Solar energy motor |
06/08/1988 | EP0270477A2 D.C. motor |
06/01/1988 | EP0269170A2 Brushless direct current electric motor for small outputs |
05/31/1988 | US4748362 D. C. motor with multi-tooth poles |
05/25/1988 | CN86107654A Electric and magnetic mixed excitation system |
05/24/1988 | US4746844 Control and operation of brushless continuous torque toroid motor |
05/24/1988 | CA1237184A1 Ferrite permanent magnet electrical machine and the application thereof within vehicle traction drives |
05/18/1988 | EP0267301A1 System for remote transmission of angle of rotation and of force between driving and driven shafts |
05/17/1988 | US4745345 D.C. motor with axially disposed working flux gap |
05/17/1988 | CA1236876A1 Electric motor and tachometric generator unit |
05/11/1988 | EP0266862A1 Improved brushless D.C. dynamoelectric machine |
05/11/1988 | EP0266598A2 Electrical servo-control |
05/10/1988 | US4743825 Synchronous motors and a control system thereof |
05/10/1988 | US4743813 Direct current motor with electronic commutation circuit and encoder-controlled winding power |
05/10/1988 | US4743786 Rotational position detection device |
05/10/1988 | US4743173 Slide beating unit for small size fan |
05/05/1988 | DE3737050A1 Electric motor |
05/05/1988 | DE3637480A1 Electric servo drive |
05/05/1988 | DE3637479A1 Servodrive having an AC machine |
05/04/1988 | EP0265539A1 Single-phase brushless motor |
04/28/1988 | DE3736033A1 DC motor which has a disc-shaped rotor but no commutator |
04/26/1988 | US4740733 Autosynchronous motor comprising a device for determining the position of the rotor relative to the stator, and method of starting such motor |
04/20/1988 | EP0263890A1 1-Phase energized brushless motor |
04/19/1988 | US4739203 Single-phase brushless motor with cogging features |
04/12/1988 | US4737675 Brushless motor with center leads for preventing signal distortion |
04/12/1988 | US4737674 Single phase brushless motor with a core |
04/12/1988 | US4737672 Resin layer reinforced with aromatic polyamide |
04/07/1988 | DE3632014A1 Electrical machine, especially an electric motor |
03/29/1988 | US4734627 Brushless D.C. motor having two conductors per phase energized alternately by complementary-conductivity-type semiconductors controlled by the same rotor-position signal, at times modified by a compensating technique |
03/29/1988 | US4734603 Motor control mounting |
03/24/1988 | WO1988002192A1 Improved brushless d.c. motor |
03/22/1988 | US4733119 1-Phase self-starting disk-type brushless motor with cogging-producing element |
03/22/1988 | US4733118 Low damping torque brushless D.C. motor |
03/22/1988 | US4733115 Electric motor |
03/16/1988 | EP0259724A1 Conductor plate |
03/15/1988 | US4731554 Low profile ring-shaped motor |
03/10/1988 | DE3629423A1 Cylindrical stator, its production, and an electronically commutated DC machine equipped with this stator |
03/08/1988 | US4730150 D.C. multi-phase bi-polar brushless motor |
03/08/1988 | US4730136 Two-pulse permanent magnet brushless D-C motor |
03/02/1988 | EP0052343B1 Electric machine |
03/01/1988 | US4728833 1-phase self-starting brushless motor |
02/24/1988 | EP0256132A1 Magnetic rotary device |
02/23/1988 | US4726746 Electrically-operated fuel pump |
02/17/1988 | CN86105770A Seitching-type magnetoresistance motor with four phase four line connection |
02/16/1988 | US4725752 1-phase self starting disk-type brushless motor with cogging element |
02/16/1988 | US4725751 Electrical machine |
02/10/1988 | EP0255736A1 Automatic tool exchange apparatus |
02/09/1988 | US4724368 Multiple phase electronically commutated torque motor |
02/09/1988 | US4724350 1-phase self starting disk-type brushless motor with cogging element |
02/09/1988 | US4724348 Rotatable assembly for dynamoelectric machines having means for reducing release of magnet material particles therefrom |
02/09/1988 | US4724347 Collectorless direct-current motor |
02/09/1988 | US4724346 Permanent magnet-excited external rotor motor |
02/02/1988 | US4723100 Brushless motor with a rotor pole position detector associated with each armature winding and electrically connected to another armature winding |
01/19/1988 | US4720662 Motor having alternator coils |
01/12/1988 | US4719419 Apparatus for detecting a rotary position of a shaft |
01/12/1988 | US4719378 Brushless motor having permanent magnet rotor and salient pole stator |
01/07/1988 | EP0251918A1 Angle position sensor and appliance for determining the angular position using several of said sensors |
01/07/1988 | EP0251350A2 Electric motor |
01/07/1988 | DE3622231A1 Permanent-magnet rotor for electrical machines |
01/05/1988 | US4717850 Two-pulse brushless d.c. motor with auxiliary rotor poles |
12/30/1987 | CN87104183A Miniature motor fitted with speed governor |
12/23/1987 | DE3607271A1 Brushless amplitude-controlled AC drive |
12/16/1987 | EP0248946A1 Cored armature for an inner rotor motor |
12/08/1987 | US4712035 Salient pole core and salient pole electronically commutated motor |
12/03/1987 | WO1987007419A1 System for remote transmission of angle of rotation and of force between driving and driven shafts |
12/02/1987 | EP0247997A1 Rotary transmitter |
12/01/1987 | US4710683 Rotation detecting apparatus |
12/01/1987 | US4710667 Brushless D.C. dynamoelectric machine with decreased magnitude of pulsations of air gap flux |
11/25/1987 | EP0246671A2 Coreless-brushless motor |
11/25/1987 | EP0246670A2 Method of forming interconnect sections of a coreless-brushless motor |
11/25/1987 | EP0246325A1 Cross-flow cooling fan device |
11/17/1987 | US4707645 Single-phase brushless motor |
11/11/1987 | EP0244487A1 Cross-flow cooling fan device |
11/03/1987 | US4704567 Brushless D.C. motor having alternating wider and narrower pole shoes |
11/03/1987 | US4704566 Self-starting disk-type brushless motor with screw projection for generating cogging |
10/27/1987 | US4703235 Brushless DC motor |
10/27/1987 | US4703212 Direct-current motor |
10/27/1987 | US4703211 Slotless brushless DC motor |
10/27/1987 | US4703209 Electric motor, especially collectorless d.c. motor, with an outside rotor |