Patents
Patents for H02K 23 - Dc commutator motors or generators having mechanical commutator; Universal ac/dc commutator motors (6,220)
01/1994
01/05/1994DE4221424A1 DC electric motor with rotor position, revolution rate and=or rotation direction detector - has magnetic field sensitive element with compensation for unwanted core current field components
12/1993
12/29/1993EP0576239A2 Miniature motor
12/29/1993CN2151575Y Permanent magnet DC motor
12/28/1993US5272938 Flat rim type motor drive mechanism for bicycles
12/15/1993CN1079595A Non-excited motor
12/14/1993US5270602 Corless motor
12/14/1993US5270599 Miniature motor and method of making same
12/09/1993DE4317977A1 Coaxial starter motor for vehicle - has electromagnetic switch with movable core and push-rod for motor contacts located inside brush holder
12/07/1993US5268818 Contact structure for toy motors
12/07/1993US5267925 Exercise dynamometer
12/07/1993US5267699 Methods of winding armatures with modified side pattern
12/07/1993CA1324899C Rotation detection or speed pickup device for miniature d-c motor
12/01/1993CN2148433Y Energy-saving household electric generator
11/1993
11/23/1993US5264749 Electric motor with adhesively mounted magnet yoke
11/18/1993EP0570031A2 Stator end member and method of assembling on stator
11/18/1993EP0570030A2 Stator end member
11/16/1993US5261501 Four-wheel steering system with steering motor short circuit control
11/11/1993DE4314329A1 Electromotor sliding contact with vibration damping - is formed from compressed powder with over compressed zone formed around end of conductor to hold fast against vibration
11/10/1993CN2146081Y Flat-like electric motor
11/02/1993US5258680 Armature winding structure for electric motors
11/02/1993US5258677 Permanent magnet repelling field DC motors
10/1993
10/28/1993WO1993021682A1 High torque and speed dc motors
10/27/1993CN1077823A A miniature motor
10/26/1993US5256921 Gear motor with rotary switch
10/13/1993CN1077319A DC divided or compound excitation motor with controllable dynamic property and circuit device thereof
10/12/1993US5251833 Method of winding armature of electric rotating machine
10/06/1993EP0564258A2 A miniature motor
10/06/1993CN2143383Y Electric motor for sowing machine
10/05/1993US5250867 Permanent magnet brushless DC motor having reduced cogging
10/05/1993US5250866 Structure for fixing permanent magnets in motor
09/1993
09/30/1993WO1993019458A1 Electronic cancellation of d.c. motor noise
09/22/1993EP0561463A1 Electrical machine and method of manufacturing the electrical machine
09/15/1993EP0560225A2 Methods of winding armatures with modified side pattern
09/14/1993US5245238 Axial gap dual permanent magnet generator
09/07/1993US5243247 Brush bridge assembly for a permanent-magnet d.c. motor
09/02/1993WO1993017486A1 Neutralizing overvoltages generated by magnetic armature reaction in phase windings
09/01/1993CN1022010C Disk permanent-magnet dc motor
08/1993
08/26/1993DE4205255A1 Permanently excited DC machine e.g. electric motor - has neighbouring poles of opposite polarity forming common magnet segment
08/19/1993DE4304504A1 Motor housing allowing compact construction - provides yoke opening edge section outer surface mounted on inner surface in bracket perimeter edge section
08/17/1993US5237231 Brush plate assembly for an electric motor
08/11/1993CN1075234A A contact structure for toy motors
08/10/1993US5235230 Miniature motor terminal
08/10/1993US5235227 Noise and vibration dampened electric motor such as for use with a sound movie camera
08/05/1993WO1993015546A1 Electric motor for driving a wheel
08/03/1993US5233253 Multi-phase DC motor
07/1993
07/28/1993EP0553036A1 Electrical DC motor with predetermined speeds
07/21/1993CN1021683C Miniature motor
07/14/1993CN1074315A Method of manufacturing electrical winding
07/07/1993CN2137838Y Column special-kind electric motor
07/06/1993US5225729 Lap-wound stator with adjustable commutating angle
07/01/1993DE4300769A1 DC motor with two interlayer coupled rotors - uses mechanical interface to increase efficiency to near 100 percent
06/1993
06/30/1993EP0548362A1 Flat coreless dc motor
06/30/1993EP0317580B1 Electric motor, in particular a drive motor for a drum pump or submersible pump
06/23/1993EP0547935A1 Device for measuring the instantaneous angular position of the rotor of an electrodynamic machine
06/16/1993EP0333869B1 Rotor structure of synchronous motor
06/09/1993EP0545794A1 Electrodynamical machine with inner mounted operation circuit
06/09/1993EP0545793A1 Electrodynamic commutator machine, such as a DC motor, provided with an autosynchronisation sensor and windscreen wiper system using such a motor
06/09/1993EP0545698A2 A contact structure for toy motors
06/09/1993EP0545060A1 Electric machine with a rotor excited by permanent magnets
06/08/1993US5218255 Electric wiper motor with autostop mechanism
06/02/1993EP0544537A1 A stator for miniature motors
06/02/1993EP0522015A4 Method of making an electromagnetic transducer
06/02/1993CN1072803A Stator for miniature motors
05/1993
05/26/1993EP0543625A2 Permanent magnet dynamoelectric machines
05/25/1993US5214334 Slip ring with balanced center of gravity for use in detecting rotation of motor
05/25/1993US5213017 Neutrally mounted same vibration frequency impact tool
05/19/1993EP0542667A2 Speed regulating device for a hand-held machine tool and its method of manufacture
05/19/1993CN2133985Y Small motor
05/18/1993US5212418 High torque and speed DC motors
05/11/1993CA1317625C2 Stator end member and assemblies therewith and methods of assembly
05/05/1993CN2132333Y Common winding double magnet circuit system motor
05/04/1993US5208482 Coaxial starter
04/1993
04/29/1993WO1993008635A1 Rotary electric machine
04/29/1993WO1993008634A1 Rotary electric machine
04/28/1993EP0539094A2 A miniature electric motor
04/28/1993EP0538706A2 Electric machine
04/27/1993US5206556 Field magnet for miniature motors
04/21/1993EP0537392A1 Movable brush type AC/DC servo hunting stepper motor
04/21/1993EP0537331A1 Axial gap dual permanent magnet generator
04/20/1993US5204571 Miniature electric motor with rubber stator magnet
04/20/1993US5204569 Anisotropic magnet for rotary electric machine
04/20/1993US5203071 Method of motor construction
04/14/1993CN2130006Y Starter for power saving car
04/13/1993US5202599 Electric motor
04/06/1993US5200658 Electric motor with through-bolt guides for mounting
03/1993
03/31/1993CN1020226C Miniature motor
03/23/1993US5196747 Universal electric motor
03/18/1993WO1993005561A1 Hand-held tool with an electric motor
03/17/1993EP0531564A1 Rotor for electrical machines
03/17/1993CN2128431Y DC separately excited jor compound motor with controllable dynamic characteristic
03/16/1993US5194772 A-c driven motor and method for forming input terminals thereof
03/16/1993US5194769 Electric motor, in particular electric small-size motor for driving windshield wipers on motor vehicles
03/11/1993DE4129720A1 Handwerkzeugmaschine mit einem elektromotor Portable power tool with an electric motor
03/04/1993DE4128419A1 Permanent magnet-excited DC motor - is provided with appts., for rotor position, speed and-or direction of rotation determn., with at least one magnetic field-sensitive element
03/03/1993EP0529131A1 Rotational speed measurement apparatus for DC motor
03/03/1993EP0529045A1 Controlled motor.
03/02/1993US5191257 Armature of DC motor
02/1993
02/24/1993CN2127529Y Starting motor of motorcycle
02/10/1993EP0526596A1 Electric motor with fit-on pump.
02/10/1993CN1068915A Miniature motor and method of making same
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