| Patents for H02K 33 - Motors with reciprocating, oscillating, or vibrating magnet, armature, or coil system (7,676) |
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| 11/02/1994 | CN2181770Y Low-reluctance oscillating motor |
| 10/11/1994 | US5355108 For actuating an external load |
| 10/11/1994 | US5354185 Dual piston compressor |
| 10/04/1994 | US5352101 Electromagnetically actuated compressor valve |
| 09/29/1994 | DE4308837C1 Method and circuitry for the electric control of the performance of an oscillating-piston pump |
| 09/28/1994 | EP0616751A1 Voice coil actuator |
| 09/26/1994 | EP0626045A4 Electromagnetically powered hydraulic engine apparatus and method. |
| 09/22/1994 | DE4308552A1 Device for cleaning and/or surface treatment of workpieces |
| 09/21/1994 | EP0616412A1 Electromechanical transducer for vehicle suspension |
| 09/21/1994 | CN1092566A Electromagnetic motor, in particular of the stepping type, including a cage engaged within a stator |
| 09/08/1994 | DE4306523A1 Electromagnetic oscillation system |
| 09/07/1994 | EP0614008A1 Electromagnetically operated fixed displacement pump |
| 09/07/1994 | EP0613579A1 Small size constant torque voice coil motor |
| 09/06/1994 | CA2021909C Actuator structure for a magnetic head suspension assembly in a disk drive |
| 08/23/1994 | US5341055 Combination reciprocating motor and inverter |
| 08/18/1994 | WO1994018806A1 Double ended field coil actuator |
| 08/18/1994 | WO1994018681A1 Electromagnetically actuated reciprocating compressor driver |
| 08/18/1994 | CA2155656A1 Double ended field coil actuator |
| 08/11/1994 | DE4303363A1 Stepping motor, especially for producing strong impact loads |
| 08/03/1994 | EP0608480A1 Oscillation damper |
| 08/03/1994 | EP0608368A1 Electro-optical scanning system |
| 08/02/1994 | US5334893 Monophase electromagnetic rotary actuator of travel between 60 and 120 degrees |
| 07/27/1994 | EP0607828A1 Electromagnetic motor, in particular of the stepping type, comprising a cage engaged in a stator |
| 07/26/1994 | US5333025 Rotating magnet focal plane shutter usable in a camera and having an improved device for holding the shutter in a closed position |
| 07/19/1994 | US5330330 Electromagnetically operated fixed displacement pump |
| 07/12/1994 | US5329267 Magnet assembly and a voice coil motor using such magnet assembly |
| 07/12/1994 | US5329194 Ultrasonic peripheral vascular probe assembly |
| 07/07/1994 | WO1994015392A1 Linear electrodynamic machine and method of using same |
| 07/06/1994 | CN2171170Y Double permanent-magnet straight-line reciprocating electric motor |
| 06/23/1994 | WO1994014173A1 Electromagnetically actuated compressor valve |
| 06/22/1994 | EP0603098A1 Magneto-repulsion punching with dynamic damping |
| 06/21/1994 | US5323133 Method and apparatus for making electrical connection with a movable member |
| 06/21/1994 | US5321923 Antivibration actuator |
| 06/15/1994 | EP0467943B1 Linear actuator |
| 06/14/1994 | US5321762 Voice coil actuator |
| 06/14/1994 | US5319844 Method of making an electromagnetic transducer |
| 06/08/1994 | CN1024965C Disc drive having improved linear actuator |
| 05/26/1994 | WO1994011942A1 Ferromagnetic wire electromagnetic actuator |
| 05/24/1994 | US5315190 Linear electrodynamic machine and method of using same |
| 05/11/1994 | WO1994010741A1 Magnet arrangement, and drive device and cooling apparatus incorporating same |
| 05/10/1994 | US5311092 Lightweight high power electromagnetic transducer |
| 05/04/1994 | EP0595460A1 Self-starting swinging apparatus |
| 05/03/1994 | US5309050 Ferromagnetic wire electromagnetic actuator |
| 04/26/1994 | US5306996 AC/DC stepped drive system |
| 04/20/1994 | EP0592647A1 Electromagnetic actuator having two opposite phase movable parts |
| 04/19/1994 | US5305169 Rotary actuator disk drive |
| 04/19/1994 | US5304886 Printed circuit motor |
| 04/13/1994 | EP0591187A1 Electromagnetic actuator |
| 04/07/1994 | DE4232514C1 Membrane pump drive circuit - delivers voltage pulses of the same polarity flanking voltage pulse of opposing polarity with structured pulse time intervals |
| 04/05/1994 | US5300908 High speed solenoid |
| 03/31/1994 | DE4301845C1 Active vibration damper for oscillating machine part - includes inertial, reciprocatable mass carrying plate via coupling spring and fixable at machine part |
| 03/29/1994 | US5298825 Single phase electro-magnetic actuator with low obstruction |
| 03/22/1994 | US5296988 Optical head with an adjusting mechanism for adjusting the position of an optical mirror |
| 03/09/1994 | EP0585452A1 Electromagnetic actuator |
| 03/09/1994 | CN1083634A Reciprocating electric-driven unit |
| 02/15/1994 | US5287027 Electromagnetic drive for use with vibratory conveyors |
| 02/09/1994 | CN1023746C Electrodynamic shock exciter for torsion |
| 02/03/1994 | WO1994002952A1 Method and apparatus for making electrical connection with a movable member |
| 02/02/1994 | CN2155100Y Reciprocatable electric apparatus |
| 01/26/1994 | EP0580117A2 Moving magnet-type actuator |
| 01/25/1994 | US5280673 Electromagnetic bolt insertion system |
| 01/12/1994 | CN2153175Y Spring magnetic oscillator reciprocating resonance generator |
| 01/11/1994 | US5277744 Friction welder having a drive which produces orbital motion |
| 01/06/1994 | WO1994000906A1 Vibratory compressor-actuator |
| 01/06/1994 | CA2139130A1 Vibratory compressor-actuator |
| 01/05/1994 | EP0576839A2 A rotary actuator disk drive |
| 12/22/1993 | EP0574960A2 Electric rotating motor |
| 12/14/1993 | US5270594 Compact bidirectional torque motor with increased torque |
| 12/01/1993 | EP0572155A1 Bistable magnetic actuator |
| 11/30/1993 | US5267111 Voice coil motor with discrete flux paths |
| 11/29/1993 | CA2069794A1 Three position electrically operated actuator |
| 11/24/1993 | EP0571128A1 A motor having temperature compensation |
| 11/24/1993 | CN2147686Y Electric magnetic push force device |
| 11/23/1993 | US5264896 Continuously variable electronically actuated shuttering system |
| 11/23/1993 | US5264813 Force motor having temperature compensation characteristics |
| 11/18/1993 | EP0569593A1 Disc device |
| 11/18/1993 | DE4216259A1 Electric drive for dry razor cutting head - uses electromagnet supplied with pulsed current to pivoted lever supporting cutting head drive rod |
| 11/16/1993 | US5261799 Balanced linear motor compressor |
| 11/16/1993 | CA1324438C Center of percussion head actuator assembly |
| 11/11/1993 | WO1993022821A1 Electromagnetic actuator having two opposite phase movable parts |
| 11/10/1993 | CN2145548Y Full automatic magnetic-driving energy-saving cradle |
| 11/02/1993 | US5257915 Oil free linear motor compressor |
| 10/26/1993 | US5255521 Gas cycle engine for refrigerator |
| 10/19/1993 | CA1323420C Controlled drag for magnet actuator |
| 09/30/1993 | WO1993019513A1 Electromagnetic actuator |
| 09/30/1993 | WO1993018944A1 Windscreen wiper system |
| 09/30/1993 | CA2132546A1 Windscreen wiper system |
| 09/29/1993 | CN1076807A 磁阻机 Reluctance Machine |
| 09/21/1993 | US5247410 Magnetic disk apparatus using a rotary actuator for magnetic head positioning with reduced vibration |
| 09/21/1993 | US5246353 Air breezing pump |
| 09/16/1993 | WO1993018572A1 Reluctance machine |
| 09/01/1993 | EP0558362A1 Monophase electromagnetic rotary actuator with a movement between 60 and 120 degrees |
| 09/01/1993 | EP0557443A1 Gyrating programmable scanner |
| 08/26/1993 | DE4205290A1 Electromagnetically operated pump e.g. dosing pump - has very small bleed-off cross=section in either armature and/or cylinder space or both |
| 08/25/1993 | CN1075534A Electromagnetically powered hydraulic engine apparatus and method |
| 08/19/1993 | WO1993016297A1 Electromagnetically powered hydraulic engine apparatus and method |
| 08/19/1993 | DE4204682A1 Dual pump drive reducing vibrations - fixes two vibrating armature membrane pumps together so their armatures work against each other |
| 08/19/1993 | DE4204029A1 Electromagnetic lifting and oscillating device e.g. for use in flat loudspeakers - has ferromagnetic core column with magnets either side which are surrounded by lifting and oscillating spool |
| 07/28/1993 | CN1074788A 电磁致动器 Electromagnetic actuator |
| 07/27/1993 | US5231337 Vibratory acoustic compressor |