| 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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| 06/26/1990 | US4937485 Coil/magnet structure for a brushless DC motor |
| 06/19/1990 | US4935656 High speed motor/generator for turbocharger |
| 06/19/1990 | US4934781 Light deflecting system with rotating mirror |
| 06/14/1990 | WO1990006541A1 Directional spring for ac synchronous motor |
| 06/13/1990 | DE3905383A1 Internal combustion engine |
| 06/13/1990 | CN2058285U Synchronous micromotor with coaxial gear reduction unit |
| 06/13/1990 | CN1008349B Lifting apparatus |
| 06/12/1990 | US4933583 Rotor having balance weights |
| 06/06/1990 | EP0371132A1 Electric drive |
| 06/05/1990 | US4931765 Unitized housing for silent and tone pager alerting system |
| 06/05/1990 | US4931710 Servoactuator with feedback and method of calibrating |
| 06/05/1990 | US4930590 Motor and transmission assembly |
| 05/31/1990 | DE3840281A1 Lifting-gear drive |
| 05/31/1990 | DE3839752A1 Starting coupling (clutch) for a single-phase synchronous motor |
| 05/30/1990 | EP0370395A2 Method of controlling the path of balls in an oscillating bearing |
| 05/30/1990 | CN1042629A Electric driver |
| 05/29/1990 | US4929219 Belt locator for locating a belt on a pulley |
| 05/29/1990 | US4928543 Electrically operated drum brake |
| 05/29/1990 | CA1269692A1 Motor-speed reducer for the simultaneous driving of two structures |
| 05/23/1990 | EP0368889A1 Roller drive unit. |
| 05/23/1990 | DE3938353A1 Spindle drive for selective linear and rotary movements - affords mixt. of translation and rotation when heads are driven with unequal speeds in opposite directions |
| 05/22/1990 | US4928046 Multiple rotational position sensor |
| 05/21/1990 | CA2000669A1 Dynamic motor controller |
| 05/16/1990 | EP0367846A1 Pump set |
| 05/15/1990 | US4926107 Variable inertia energy storage system |
| 05/15/1990 | US4926100 Zero-torque eddy current motor system and method for controlling same |
| 05/15/1990 | US4926080 Linear actuator screw connected with parallel linear bearing |
| 05/15/1990 | US4924674 Turbocharger with rotary electric machine |
| 05/15/1990 | CA1269131A1 Brushless blower motor with load proportional cooling for control circuitry |
| 05/08/1990 | US4924128 High-efficiency electric motor with low torque variation |
| 05/03/1990 | DE3938241A1 Stator for variable speed electric motor - has 2 pole pairs with associated field winding connected in series with armature |
| 05/03/1990 | DE3836372A1 Device for the reciprocating movement of a flexible draw spindle which has helical threads |
| 05/01/1990 | US4921083 Clutch module with predetermined torque |
| 04/25/1990 | EP0364826A1 Actuator, particularly for locking and unlocking motor vehicle doors |
| 04/25/1990 | EP0364816A1 Electro-hydraulic motor pump unit |
| 04/24/1990 | US4920292 Motor having rotor capable of both stepped rotary and axial shift motions |
| 04/24/1990 | US4918998 Motor-speed reducer device including safety means for driving an element |
| 04/18/1990 | EP0364308A2 Linear actuators and linear drive systems |
| 04/17/1990 | US4918344 Electric motor with frictional planetary speed reducer |
| 04/17/1990 | US4918324 Coaxial engine starter |
| 04/17/1990 | US4918323 Engine starting and charging device |
| 04/12/1990 | DE3834140A1 High-frequency spindle for the machining of workpieces |
| 04/12/1990 | DE3834072A1 Heat engine on the Stirling principle or the Ericsen principle |
| 04/12/1990 | DE3834071A1 Heat engine on the Stirling principle or the Ericsen principle |
| 04/12/1990 | DE3834070A1 Heat engine on the Stirling principle or the Ericsen principle |
| 04/11/1990 | EP0363305A2 Combination motor endshield and pump housing |
| 04/11/1990 | EP0362781A2 High-frequency spindle for machining workpieces |
| 04/11/1990 | EP0201486B1 Induction motor |
| 04/10/1990 | US4916341 Electric arbor integrated with an induction motor |
| 04/10/1990 | CA1267690A1 Ironless brushless dc motor with wave winding |
| 04/05/1990 | WO1990003684A1 Electric machinery employing a superconductor element |
| 04/04/1990 | EP0361333A1 Water turbine, particularly for use in domestic commodities |
| 04/04/1990 | EP0361332A1 Water turbine, particularly for use in domestic commodities |
| 04/03/1990 | US4914713 Rotation detection or speed pickup device for miniature d-c motor |
| 04/03/1990 | US4914373 Generator set for use on a building site |
| 04/03/1990 | US4914333 Electromotor belt drive adjustment assembly |
| 04/03/1990 | US4914331 Minimum height motor assembly using aluminum endshields |
| 04/03/1990 | US4914330 Low speed brushless electric motor |
| 04/03/1990 | US4913258 Electric vehicle |
| 04/03/1990 | US4912995 Thrust to torque converter, particularly for coupling a reciprocating shaft to a rotary electrical generator or the like |
| 04/03/1990 | CA1267426A1 Overhead doors operating apparatus |
| 03/29/1990 | DE3832304A1 Actuating drive |
| 03/28/1990 | EP0360779A2 Device for braking electric motors |
| 03/27/1990 | US4912349 Pivotally adjustable electric hand tool |
| 03/22/1990 | WO1990003031A1 Recording/reproducing apparatus |
| 03/22/1990 | DE3831457A1 Electric motor-driven fluid pump |
| 03/21/1990 | EP0359653A1 Pulley, shaft and motor with such a pulley, and method of constructing it |
| 03/21/1990 | CN1040557A Hoist |
| 03/20/1990 | US4910423 Open horse shoe electric self braking motor |
| 03/20/1990 | US4910419 Overload detection mechanism for motor-driven linear actuator |
| 03/20/1990 | CA1266876A1 Multiple spoke energy storage system for space environment |
| 03/20/1990 | CA1266789A1 Drive mechanism for a domestic vibration apparatus |
| 03/15/1990 | DE3925812A1 Generator plant on-board ship - is integrated in propeller shaft line with armature and stator located so that they are driven simultaneously |
| 03/15/1990 | DE3925811A1 Generator plant on-board ship - integrated in propeller shaft line with hollow armature shaft driven by auxiliary drive |
| 03/15/1990 | DE3923997A1 Control system for magnetic bearing |
| 03/14/1990 | EP0357913A2 Motor with a wet rotor |
| 03/14/1990 | CN2054590U Non-brush direct current motor for driving directly wheel of electric bicycle |
| 03/14/1990 | CN2054589U Neodymium iron boracium non-brush motor for electric bicycle |
| 03/14/1990 | CN2054587U Electric axle for bicycle |
| 03/13/1990 | US4908806 Directional spring for AC synchronous motor |
| 03/13/1990 | US4908558 Spherical motion simulator |
| 03/13/1990 | US4907467 Structure of first arm of industrial robot having articulated horizontal arms |
| 03/08/1990 | WO1990002436A1 Electrical supply system for low current loads |
| 03/07/1990 | EP0357422A2 Electric motor rotator for christmas tree ornaments |
| 03/06/1990 | US4905531 Adjusting drive |
| 03/06/1990 | US4905528 Electric actuator |
| 02/28/1990 | EP0355264A2 Device for setting a resettable counting register |
| 02/28/1990 | EP0355263A2 Motor, in particular for driving a time piece |
| 02/28/1990 | EP0355262A2 Device with a cross-wound coil and a rotary magnet |
| 02/27/1990 | US4904890 Bore pack exciter cooling system |
| 02/27/1990 | US4903535 Power converting mechanism |
| 02/27/1990 | CA1266205A1 Marine propulsion system |
| 02/22/1990 | DE3929556A1 Commutator motor for electric machine tool - has magnetic short circuit stator with single OFF and changeover switch for switching and short-circuiting |
| 02/22/1990 | DE3840727A1 Method and device for transmitting power |
| 02/22/1990 | DE3827902A1 Self-ventilated electric motor, especially for spinning-mill machines |
| 02/21/1990 | CN2053394U Fast brake apparatus for rotor of one-phase motor on interruption of power supply |
| 02/20/1990 | US4902941 Drive motor for information-storage-disk devices |
| 02/14/1990 | CN2052983U Permanent magnet dc brushless motor with speed reducer |
| 02/13/1990 | US4900960 Electric actuator with output shield and mating gear |
| 02/13/1990 | US4900237 Rolling rotor motor balancing means |