| Patents for H02K 23 - Dc commutator motors or generators having mechanical commutator; Universal ac/dc commutator motors (6,220) |
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| 06/23/1988 | DE3741919A1 DC permanent-magnet motor having armature reaction and brush displacement with respect to the armature rotation direction |
| 06/22/1988 | EP0271714A2 Electric motor with a commutation device to reverse the rotation |
| 06/21/1988 | CA1238357A1 Switch limit assembly |
| 06/16/1988 | WO1988004490A1 Armature of an electric motor |
| 05/31/1988 | US4748362 D. C. motor with multi-tooth poles |
| 05/31/1988 | US4748358 Electric starter motor with holder for permanent magnets |
| 05/31/1988 | US4748353 Hand tool for clockwise and counterclockwise rotations |
| 05/31/1988 | CA1237461A1 Direct current machine |
| 05/25/1988 | CN86107654A Electric and magnetic mixed excitation system |
| 05/24/1988 | USRE32674 Multiple windings electrical machines |
| 05/11/1988 | EP0266672A2 Permanent-magnet series motor |
| 05/11/1988 | DE3720862A1 Series-wound permanent magnet motor |
| 05/10/1988 | US4743817 Electromagnetic servo unit |
| 05/04/1988 | EP0265425A1 Commutator machine |
| 04/27/1988 | EP0265364A1 Permanent magnet assembly and method of making same |
| 04/27/1988 | EP0265279A2 Flat motor device, method and apparatus for producing the same |
| 04/21/1988 | DE3634214A1 Drive motor for an apparatus |
| 04/07/1988 | DE3632014A1 Electrical machine, especially an electric motor |
| 04/06/1988 | EP0262773A1 Solderless connection for an electric motor |
| 04/06/1988 | CN87212031U Excitation unit of electro-hydraulic valve motor |
| 03/30/1988 | CN87105601A Electric machines |
| 03/30/1988 | CN86106317A D.c. motor with series windings |
| 03/29/1988 | US4734607 Miniature motor with spark quenching connection between commutator and brushes |
| 03/17/1988 | DE3620397A1 Electrical machine, especially a small DC motor |
| 03/16/1988 | EP0260040A1 Suppression in electric motors |
| 03/16/1988 | CN87106152A Electric motor with velocity indicating device |
| 03/10/1988 | WO1988001802A1 Electrical machine, in particular electric motor |
| 03/09/1988 | EP0259025A2 Electric motor with velocity indicating device |
| 03/09/1988 | EP0258677A1 Carrier plate for installing in an electric motor |
| 03/09/1988 | CN87106158A Suppression in electric motors |
| 03/02/1988 | CN87104301A Axial fan type permanent magnet motor |
| 03/01/1988 | US4728835 Electric motors |
| 02/24/1988 | CN86201920U Improved starter |
| 02/23/1988 | US4727273 Permanent magnet type electric motor |
| 02/10/1988 | EP0255736A1 Automatic tool exchange apparatus |
| 02/03/1988 | EP0255222A1 Electric motor with commutator oil protection |
| 02/03/1988 | CN85108196B Arrangements for controlling d.c. motors |
| 01/27/1988 | EP0254347A1 Electric machine |
| 01/19/1988 | US4720650 Motor |
| 01/13/1988 | EP0252481A2 Electric motor system for automobiles |
| 01/13/1988 | CN87104514A Micromotor |
| 01/12/1988 | US4719382 Direct-current motor |
| 01/07/1988 | EP0251350A2 Electric motor |
| 01/07/1988 | EP0250839A1 Rotor for a direct-current machine |
| 01/06/1988 | CN85109553A Combined magnetic full force push-pull kinetic energy increasing direct-current motor |
| 12/30/1987 | CN87104337A Electric motor |
| 12/30/1987 | CN87104183A Miniature motor fitted with speed governor |
| 12/29/1987 | US4716330 DC motor with commutator rotor |
| 12/29/1987 | US4716329 Armature construction for eliminating armature reaction in electric rotating machines |
| 12/29/1987 | US4715732 Bearing assemblies for motors |
| 12/08/1987 | US4712034 Multiple ring armature core for direct current motor |
| 12/03/1987 | WO1987007452A1 Stator for an electrical machine |
| 12/03/1987 | DE3716625A1 Permanent-magnet-energised (excited) electric motor |
| 12/02/1987 | EP0247495A2 Electrical apparatus for personal use |
| 12/01/1987 | US4710667 Brushless D.C. dynamoelectric machine with decreased magnitude of pulsations of air gap flux |
| 11/24/1987 | US4707910 Method of assembling electric motors |
| 11/19/1987 | EP0245749A2 Permanent magnet excited D.C. motor |
| 11/17/1987 | US4707630 Magnetic cover member for magnetic poles of DC motor |
| 11/17/1987 | US4706512 For a motor vehicle |
| 11/11/1987 | EP0025058B1 Multiple windings electrical machines |
| 11/11/1987 | CN87103248A Miniature motor |
| 11/05/1987 | DE3712652A1 Armature winding for commutator motors and generators having a plurality of pole pairs |
| 11/04/1987 | CN87206312U General model electric motor for step and dc motor |
| 10/28/1987 | CN87102756A Shallow cup-shaped miniature motor |
| 10/27/1987 | US4703210 Miniature electric non-uniform magnetization rotating machine |
| 10/20/1987 | US4701655 D.C. machine, with mechanical and electrical connections among collector segments |
| 09/30/1987 | CN86108648A Lightweight high power electromagnetic transducer |
| 09/23/1987 | EP0238249A2 An electric motor |
| 09/23/1987 | EP0237935A2 Permanent magnet field DC machine |
| 09/15/1987 | US4694211 In a motor vehicle |
| 09/09/1987 | EP0236239A1 Electric starter with an epicycloidalic reduction gear |
| 09/09/1987 | EP0235735A1 Portable electric tool |
| 09/09/1987 | EP0235443A1 Improvements in or relating to electric motors and components therefor |
| 09/08/1987 | US4691746 Flat windings, coil forms, and winding method |
| 09/03/1987 | DE3606275A1 Electrical machine |
| 08/20/1987 | DE3604675A1 Drive motor for an apparatus (appliance) |
| 08/19/1987 | EP0232834A1 Multipole direct current motor |
| 08/19/1987 | EP0232402A1 D.c. electric motor. |
| 08/18/1987 | US4687608 Composite permanent magnet for magnetic excitation and method of producing the same |
| 08/12/1987 | CN87100198A Miniature motor |
| 08/05/1987 | EP0230759A1 Electrical machines |
| 08/05/1987 | EP0230639A2 Lightweight high power electromagnetic transducer |
| 08/04/1987 | US4684839 Structure of electric motor and production method thereof |
| 08/04/1987 | US4684774 Electrical contacts for a switch |
| 08/04/1987 | CA1225114A1 Interpole assembly for a dc machine |
| 07/28/1987 | US4683388 Compound induction electric rotating machine |
| 07/28/1987 | US4682410 Process of making a dynamo electric machine |
| 07/21/1987 | US4682066 Alignment system for permanent magnet motors |
| 07/14/1987 | CA1224235A1 Brushless d.c. dynamoelectric machine having ferrite material magnetic circuit |
| 07/01/1987 | EP0227558A1 Electric starter with a flux converter for an internal-combustion engine |
| 06/30/1987 | US4677335 Axial gap type coreless electric motor with noise reduction |
| 06/30/1987 | US4677334 Flat coil dynamoelectric device with encapsulated preform |
| 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 | US4677330 Miniature motor with frangible magnet retaining boss |
| 06/30/1987 | US4677329 Sub-assembly for electric motor with stator terminal connection means |
| 06/24/1987 | EP0226356A1 Electric motor with ironless armature |
| 06/24/1987 | EP0226331A1 Alignment system for permanent magnet motors |
| 06/24/1987 | CN85109220A D.c. electric machine with annular magnetic field and disk rotor |
| 06/24/1987 | CN85106290A D.c. motor having permanent magnetic field system |
| 06/23/1987 | US4675566 Method of adjusting motor performance |