| Patents for H02K 7 - Arrangements for handling mechanical energy structurally associated with the machine, e.g. structural association with mechanical driving motor or auxiliary dynamo-electric machine (44,087) |
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| 10/10/1989 | US4872256 Process for producing a squirrel-cage rotor |
| 10/05/1989 | WO1989009324A1 Reciprocating piston internal combustion engine with means for controlling the output |
| 10/05/1989 | DE3908478A1 Multi-disc clutch |
| 10/05/1989 | DE3824867C1 Linear drive unit having a multi-element housing |
| 10/04/1989 | EP0335287A2 Permanent magnet motor with hysteresis drag cup coupling |
| 10/04/1989 | EP0334857A1 Electric starter motor for internal combustion engines. |
| 10/04/1989 | EP0263110B1 Machine with magnetic bearing rotor and electric radial field machine |
| 09/26/1989 | US4870310 Portable crash-survivable kinetic energy storage machine |
| 09/26/1989 | CA1261916A1 Hybrid generating system |
| 09/26/1989 | CA1261561A1 Quiet by-pass vacuum motor |
| 09/26/1989 | CA1260724A1 Electric motor-speed reducer unit for driving accessories of motor vehicles, such as window glasses |
| 09/26/1989 | CA1260444A1 Lighting apparatus for wheels of vehicles |
| 09/26/1989 | CA1260051A1 Electric motor |
| 09/20/1989 | EP0333539A1 Disconnectible linear stepping motor with a recentered rotor |
| 09/20/1989 | EP0332979A2 Magnetic support with permanent magnets for absorption of the radial bearing stresses |
| 09/19/1989 | US4868407 Engine starter motor |
| 09/14/1989 | DE3906861A1 Power supply unit (energy supply unit) |
| 09/14/1989 | DE3906842A1 Miniature electric motor with worm reduction gearing - has extended end of motor shaft fitted into bore in worm at given spacing from motor bearing |
| 09/14/1989 | DE3806714A1 Electric motor with a transmission |
| 09/12/1989 | US4866319 Erasing machine |
| 09/12/1989 | US4865172 Combination brake and inching device |
| 09/08/1989 | WO1989008345A1 Power-operated device with a cooling facility |
| 09/06/1989 | EP0330898A1 Unit comprising an electric motor and a machine driven by the motor by means of a belt |
| 09/06/1989 | CN2044014U A.c. breeze electric fan |
| 09/05/1989 | US4864276 Very low-profile motor arrangement for radio pager silent alerting |
| 09/05/1989 | US4864175 Rotor for an electric motor |
| 09/05/1989 | US4862770 Two-speed alternator drive |
| 09/05/1989 | US4862581 Method of constructing a dynamoelectric machine |
| 08/31/1989 | DE3805060A1 Electric motor having a system carrier for accommodating components, conductor tracks and control and regulation modules (chips) |
| 08/30/1989 | CN2043802U Electric motor having electromagnetic brake with adjustable gap |
| 08/29/1989 | US4861237 Axial-flow fan apparatus |
| 08/24/1989 | WO1989007856A1 Improvements in or relating to electric power generators |
| 08/22/1989 | US4859888 Cross flow type cooling fan device |
| 08/22/1989 | US4859886 Portable engine-operated electric generator |
| 08/22/1989 | US4858490 Two motor redundant drive mechanism |
| 08/22/1989 | US4858481 Position controlled linear actuator |
| 08/16/1989 | CN2043024U Miniature water turbogenerator |
| 08/16/1989 | CN2043023U Singe-plate type injected colloid-liner electromagnetic brake motor |
| 08/16/1989 | CN2043022U Cooling for electric motor |
| 08/15/1989 | US4857812 Electric motor system for automobiles |
| 08/15/1989 | US4857784 Motor having rotation speed detection mechanism |
| 08/15/1989 | US4857781 High-speed non-contact linear motor with magnetic levitation |
| 08/10/1989 | WO1989005261A3 Marine trolling motor with traction drive |
| 08/10/1989 | DE3802890A1 Impeller suds pump for washing machines or dishwashers |
| 08/09/1989 | EP0326831A1 Actuating device for a door wing |
| 08/08/1989 | US4854828 Remotely removable and replaceable motor for hazardous service pump installation |
| 08/08/1989 | US4854183 Cyclic electromechanical program control for controlling elements, such as for example openable roofs of vehicles |
| 08/08/1989 | CA1258285A1 Electric motor with disc brake |
| 08/01/1989 | US4853573 Eddy current brake assembly |
| 08/01/1989 | US4853571 Intermediate bearing drives for clothes washing machines |
| 08/01/1989 | US4852306 Toolholder device for a machine tool |
| 07/25/1989 | US4851731 Structure of a flat-type brushless DC motor |
| 07/25/1989 | US4850459 Electrically operated drum brake |
| 07/19/1989 | CN2041461U Braking motor |
| 07/18/1989 | US4849648 Compressed gas system and method |
| 07/18/1989 | US4849646 Air driven whistle generator |
| 07/18/1989 | US4848188 Momentum compensated actuator with redundant drive motors |
| 07/18/1989 | CA1257667A1 Power combiner, polarizer and structure including a waveguide section rotated by a stepper motor arrangement |
| 07/13/1989 | DE3744274A1 Electric motor, especially a small electric motor (miniature electric motor) |
| 07/11/1989 | US4847513 Power-operated device with a cooling facility |
| 07/11/1989 | US4846309 Elevator hoisting apparatus |
| 07/11/1989 | CA1257109A1 Belt drive method and apparatus |
| 06/29/1989 | DE3743159A1 Electrical thrust-rod drive |
| 06/29/1989 | DE3741771A1 Elektromotor mit getriebe Electric motor with gearbox |
| 06/27/1989 | US4843500 Disk storage drive |
| 06/27/1989 | CA1256390A1 Irreversible free wheeling clutch |
| 06/21/1989 | EP0321332A1 Highly efficient electric motor showing low torque ripple |
| 06/20/1989 | US4841204 Combination electric motor and magnetic bearing |
| 06/20/1989 | US4841187 Electric motor with attached tachogenerator |
| 06/15/1989 | WO1989005539A1 Driving motor |
| 06/15/1989 | WO1989005261A2 Marine trolling motor with traction drive |
| 06/14/1989 | EP0320415A1 Electric motor compressor unit |
| 06/13/1989 | US4839546 Rotational noise reduction structure in dc motor with rotor magnets |
| 06/13/1989 | US4838760 Fan with motor cooling enhancement |
| 06/13/1989 | US4838391 Braking device |
| 06/13/1989 | US4838100 Starter for engine |
| 06/08/1989 | DE3739836A1 Telemeter for indicating the brake pad wear on electric brakes |
| 06/06/1989 | US4836790 Header device |
| 06/06/1989 | US4836338 Electrically operated disc brakes |
| 06/06/1989 | US4835839 Method of fabricating a salient pole electronically commutated motor |
| 06/01/1989 | DE3838946A1 Multipart-coupled magnetically driven pump |
| 05/31/1989 | EP0318345A1 Reduction motor device with overload protection for driving a part |
| 05/31/1989 | EP0185656B1 Linear electromagnetic machine |
| 05/31/1989 | CN2038686U Miniature hydroturbine generator with permanent-magnet |
| 05/31/1989 | CN1033223A Rotor balancing |
| 05/30/1989 | US4835425 Linear motor |
| 05/24/1989 | EP0317056A1 Rotor balancing |
| 05/24/1989 | DE3738606A1 Emergency operating device for a sliding roof |
| 05/23/1989 | US4833353 Method of optimizing armature balance through lamination orientation |
| 05/23/1989 | US4832674 Pulley and press-fit pulley structure |
| 05/23/1989 | US4832661 Apparatus and method for maintaining alternator output above predetermined levels |
| 05/23/1989 | US4832630 Marine trolling motor with traction drive |
| 05/23/1989 | US4831895 Starting motor |
| 05/23/1989 | US4831858 Driving apparatus for vertical rolling mill |
| 05/23/1989 | CA1254607A1 Permanent magnet excited alternator compressor with direct current control |
| 05/18/1989 | WO1989004431A1 Electromechanical device for stopping a shaft in at least one position |
| 05/18/1989 | DE3836563A1 Drive system for a coolant pump in an atomic power station |
| 05/17/1989 | EP0315721A1 Internal combustion driven air compressor |
| 05/17/1989 | CN2037892U Small-flow domestic hydroelectric generator |
| 05/16/1989 | US4831297 Submersible electric propulsion motor with propeller integrated concentrically with motor rotor |