| Patents for H02K 33 - Motors with reciprocating, oscillating, or vibrating magnet, armature, or coil system (7,676) |
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| 06/23/1990 | CA2005111A1 Sensitive electrical to mechanical transducer |
| 06/13/1990 | EP0372590A1 Active control system and method for reducing engine noise and vibration |
| 06/12/1990 | US4933585 High performance electric machine resistant to losses caused by the joule effect |
| 05/23/1990 | EP0369735A2 Low profile voice coil actuator for use in an optical data storage device |
| 05/22/1990 | US4926896 Sensitive electrical to mechanical transducer |
| 05/15/1990 | US4924675 Linear motor compresser with stationary piston |
| 05/14/1990 | CA2002744A1 Low profile voice coil actuator for use in an optical data storage device |
| 04/24/1990 | CA1268238A1 Airless spray gun |
| 04/19/1990 | WO1990003852A1 Electrodynamic pulse emitter |
| 04/18/1990 | EP0364026A1 Motor-compressor unit |
| 04/12/1990 | DE3832780A1 Control motor for a servo valve |
| 04/10/1990 | US4916342 Rotary actuator |
| 04/04/1990 | EP0361670A2 Electromagnetic actuator |
| 03/28/1990 | CN2055192U Impulse transmission pump |
| 03/27/1990 | USRE33186 Electric rotary machine having superconducting rotor |
| 03/27/1990 | US4912343 Electromagnetic actuator |
| 03/20/1990 | US4909379 Vibrator conveyor system |
| 03/13/1990 | US4908592 Electromagnetic actuating device |
| 03/07/1990 | EP0357317A1 Electric motor |
| 02/27/1990 | US4905031 Axial magnetic actuator |
| 02/20/1990 | US4902996 Movable coil driving unit |
| 02/13/1990 | US4901357 Electromagnetic transducer |
| 02/07/1990 | EP0353894A2 Force motor |
| 01/17/1990 | EP0351329A1 A high-speed non-contact linear motor with magnetic levitation |
| 01/10/1990 | CN1006415B Ultrasonic transducer probe drive mechanism with position sensor |
| 01/04/1990 | DE3822334A1 Domestic vibratory appliance, especially electric razor |
| 12/21/1989 | DE3820711A1 Oscillating-armature motor |
| 12/12/1989 | US4886429 Electromagnetic pump |
| 12/05/1989 | US4885487 Electromagnetic oscillation motor |
| 12/05/1989 | US4884954 Twin coil apparatus and energizing structure therefor |
| 12/05/1989 | CA1263736A1 Ultrasonic sector scanner |
| 11/29/1989 | EP0343350A2 Linear motor arrangement with center of mass balancing |
| 11/28/1989 | US4883994 Linear motor |
| 11/23/1989 | EP0342733A2 Improvements in and relating to electromagnetic actuators |
| 11/21/1989 | US4882508 Dual flux path voice coil motor |
| 11/21/1989 | CA1263172A1 Ultrasonic sector scanner |
| 11/02/1989 | DE3813387A1 Method for operating a magnetically driven vibrating conveying device |
| 10/25/1989 | CN2046691U Electro-magnetic oscillator |
| 10/17/1989 | US4874215 Tunable resonant mechanical system |
| 09/26/1989 | US4870335 Rotary actuator |
| 09/20/1989 | EP0333323A1 A dual magnetic flux path linear voice coil motor |
| 09/20/1989 | EP0333259A2 Electrodynamic actuator for optical recording system |
| 09/13/1989 | EP0332378A2 Electrically powered pump unit |
| 09/05/1989 | US4864447 Linear actuator for a memory storage apparatus |
| 09/05/1989 | US4864170 Linear motor |
| 08/29/1989 | US4862043 Low voltage electromagnetic pulse actuator |
| 08/24/1989 | DE3804768A1 Vibrator (shaker) |
| 08/24/1989 | DE3804360A1 Oscillating-armature motor having voltage matching |
| 08/22/1989 | US4859152 Electromagnetic air pump |
| 08/17/1989 | DE3803821A1 Oscillating-armature motor with amplitude monitoring |
| 08/15/1989 | US4857781 High-speed non-contact linear motor with magnetic levitation |
| 08/08/1989 | US4855853 Actuator for positioning heads in magnetic disc apparatus |
| 08/08/1989 | US4854833 Electromagnetically reciprocating apparatus with adjustable bounce chamber |
| 08/02/1989 | EP0326374A2 A moving coil linear motor |
| 08/01/1989 | US4853808 Linear actuator for disc drive |
| 07/26/1989 | CN1034284A Disk drive having improved linear actuator |
| 07/18/1989 | US4848171 Rocker arm drive for electrical appliances |
| 07/11/1989 | US4847581 Dual conversion force motor |
| 07/11/1989 | CA1257321A1 Non-linear electromagnetic vibration device |
| 06/15/1989 | WO1989003480A3 Linear motor compressor with stationary piston |
| 05/31/1989 | EP0185656B1 Linear electromagnetic machine |
| 05/16/1989 | US4831292 Linear motor arrangement with center of mass balancing |
| 05/16/1989 | CA1254256A1 Vibration motor comprising a pivotal armature |
| 05/09/1989 | US4828347 Oscillating linear deflection device |
| 05/02/1989 | US4827163 Monocoil reciprocating permanent magnet electric machine with self-centering force |
| 05/02/1989 | CA1253557A1 Motor-compressor unit |
| 04/26/1989 | EP0313136A1 Apparatus for recording and/or reading recording tracks in a recording surface of a disc by means of a scanning unit, which disc rotates about an axis of rotation during operation |
| 04/25/1989 | US4825332 Electromagnetic driving circuit |
| 04/25/1989 | CA1253189A1 Electromagnetic vibratory exciter |
| 04/20/1989 | WO1989003498A1 Linear drive motor with flexure bearing support |
| 04/20/1989 | WO1989003480A2 Linear motor compressor with stationary piston |
| 04/19/1989 | EP0312464A1 Electric machine in particular with radial air-gaps |
| 04/11/1989 | US4821246 Electromagnetic vibrator for seismic and civil-engineering applications |
| 03/21/1989 | US4814650 Flat plunger linear electrodynamic machine |
| 03/21/1989 | CA1251352A1 Electromagnetic linear motor and pump apparatus |
| 03/15/1989 | EP0306928A2 Magnet for motor and method of manufacturing same |
| 03/08/1989 | EP0305474A1 Voice coil linear actuator. |
| 03/07/1989 | US4811193 Variable frequency controller |
| 03/07/1989 | US4810914 Linear actuator with multiple closed loop flux paths essentially orthogonal to its axis |
| 02/28/1989 | US4808863 Active control system and method for reducing engine noise and vibration |
| 02/07/1989 | US4803388 Linear motor |
| 01/31/1989 | US4801829 Electromagnetic motor without mechanical motion converter |
| 01/25/1989 | EP0300594A1 Magnet positioning apparatus |
| 01/17/1989 | US4798054 Linear drive motor with flexure bearing support |
| 01/03/1989 | US4795929 Rotary actuator |
| 01/03/1989 | CA1247872A1 Cryogenic refrigeration system with linear drive motors |
| 12/28/1988 | CN88211455U Electromagnetic vibrating type solvation promoter for medical use |
| 12/20/1988 | US4792708 Force motor, multiple, parallel element linear suspension |
| 12/06/1988 | CA1246214A1 Moving magnet disc drive actuator |
| 11/30/1988 | EP0293257A2 An electromagnetic pulse actuator |
| 11/29/1988 | US4787823 Electromagnetic linear motor and pump apparatus |
| 11/23/1988 | EP0291638A2 Linear actuator |
| 11/22/1988 | CA1245269A1 Electromagnetic vibratory exciter |
| 11/02/1988 | EP0288699A2 Jigging conveyor |
| 10/26/1988 | EP0288343A1 Electromagnetic control means of vibrations in electric machines |
| 10/18/1988 | US4778353 Hall switch pump |
| 09/21/1988 | EP0282589A1 Electromagnetic oscillation motor |
| 09/20/1988 | US4772828 Control device supplying optimum power to oscillating drive motor for resonant-piston type compressor unit |
| 09/07/1988 | WO1988006784A1 Controlled drag for magnet actuator |
| 09/07/1988 | CN88101524A Electromagnetic driving circuit |