Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02K - Dynamo-electric machines › H02K 23 - Dc commutator motors or generators having mechanical commutator; Universal ac/dc commutator motors
Patents for H02K 23 - Dc commutator motors or generators having mechanical commutator; Universal ac/dc commutator motors (6,220)
07/1982
07/06/1982US4338536 Reversible direct current machine with movable stator
07/06/1982US4338535 Direct current motor having E-shaped interpoles
07/06/1982US4338533 Electric machine excited by permanent magnets
06/1982
06/15/1982US4335323 Stamped sheet metal frame for dynamoelectric machine
06/10/1982WO1982001967A1 Compound interaction/induction electric rotating machine
06/09/1982EP0053485A1 DC permanent magnet motors
06/08/1982US4334163 DC Electric motors
05/1982
05/13/1982WO1982001626A1 Coil unit of coreless type armature and method of manufacturing same
05/11/1982US4329610 Armature winding pattern for an electric motor
05/11/1982US4329594 Pivotal and slidable auto roof cover
05/05/1982EP0050814A1 DC motor with ferrite permanent magnet field poles
05/04/1982US4328405 Trigger switch and printed circuit board arrangement for a portable tool
04/1982
04/28/1982EP0050134A1 Armature winding pattern for an electric motor and method
04/27/1982US4327304 Winding for small rotary electric double air gap motor
04/27/1982US4327302 Electronically commutated motor, stationary and rotatable assemblies therefore, and lamination
04/13/1982US4324995 Thrust preventive device for the output shaft of an electric motor
04/07/1982EP0048966A1 Field pole structure of DC motor
04/06/1982US4323828 Apparatus for use with a motor drive
04/06/1982US4323806 Miniature rotary electric machine
04/06/1982CA1121434A1 Four pole wave wound direct current machine with multi-turn armature coils
04/06/1982CA1121433A1 Multiple windings electrical machines
04/01/1982WO1982001104A1 Multiple windings electrical motors controllers
03/1982
03/30/1982US4322650 Small electric motor
03/30/1982US4322646 Flux focussed DC motor and method for assembly
03/09/1982US4319152 Laminated winding for electric machines
03/09/1982CA1119394A1 Methods and apparatus for inserting winding end turn phase insulation
02/1982
02/16/1982US4316109 Stator for multirotor D.C. magnetic motors
02/16/1982US4316099 Permanent magnet stator for D.C. motors
02/09/1982US4315178 Direct current motor with non-superposed armature windings
02/09/1982US4315177 Direct current motor with non-superposed armature windings
02/09/1982US4315174 Reversible d.c. motor with over-drive prevention switches
02/09/1982US4315170 Reversible electric motor
02/03/1982EP0044987A2 Permanent-magnet electrical machine
02/02/1982US4314170 Hand power tool control unit
01/1982
01/05/1982CA1115763A1 Dynamoelectric machine with permanent magnets in stator poles
12/1981
12/29/1981US4308480 Automatic brush shifting for a D.C. series motor
12/29/1981CA1115319A1 Armature for dynamoelectric machine
12/23/1981EP0042048A2 Direct current machine with a completely laminated magnetic circuit and an enlarged air-gap in the commutating-pole zone
12/22/1981US4307312 Direct current motor having E-shaped interpoles
12/22/1981US4307310 Segmented magnet dynamoelectric machine with series connected rotor conductors
12/08/1981US4305027 Multiple windings electrical machines
12/01/1981US4303844 Small D.C. motor
10/1981
10/29/1981WO1981003090A1 Armature winding pattern for an electric motor and method
10/28/1981EP0038495A2 Main pole provided with series and bleeder winding for a non-compensated D.C. machine
10/27/1981CA1111477A1 Small size d.c. motor with cylindrical permanent field magnet
10/20/1981US4296363 Speed selection for a direct current permanent magnet motor
10/20/1981US4296343 Electric motor housing, or the like, with integral pole and methods for making same
10/20/1981CA1110862A1 Ball joint and pole assembly for starter motor
10/07/1981EP0036856A1 Stator for multi rotor d.c.magnetic motor
10/06/1981USRE30761 Three-phase DC motor having non-superimposed armature coils
10/06/1981US4293789 Dynamoelectric machine brush rigging
09/1981
09/29/1981US4291457 Method of making self-supporting rotor coil dc-machine
09/01/1981US4286375 Method of manufacturing coreless armature
08/1981
08/26/1981EP0034460A2 Direct current motor having E-shaped interpoles
08/11/1981US4283647 Annular segment permanent magnet single air gap electric motor
07/1981
07/14/1981US4278907 D.C. Subfractional horsepower motor with flux shunt for variable RPM adjustment
06/1981
06/26/1981EP0025452A4 Multi-turn wire armature coils.
06/26/1981EP0025058A4 Multiple windings electrical machines.
06/03/1981EP0029462A1 Direct current motor
05/1981
05/26/1981US4270065 Four pole wave wound direct current machine with multi-turn armature coils
05/19/1981US4268772 Laminated rotor with cast end windings
05/19/1981US4268769 Motor for rotary brush
05/12/1981US4267477 Electromotor
05/12/1981CA1100885A1 Record player with direct drive turntable
04/1981
04/29/1981EP0027448A1 Electromechanical machine.
04/08/1981EP0026196A1 Permanent magnet generator
04/01/1981EP0025938A1 Trigger switch and printed circuit board arrangement for a portable tool
03/1981
03/31/1981US4259604 DC rotary machine
03/25/1981EP0025452A1 Multi-turn wire armature coils.
03/18/1981EP0025333A1 Motor speed control system and a food mixer incorporating such system
03/18/1981EP0025058A1 Multiple windings electrical machines.
03/13/1981EP0027448A4 Electromechanical machine.
02/1981
02/24/1981CA1096440A1 Commutator motor brush force control
02/17/1981US4251796 Slide-type potentiometer
02/10/1981US4250128 Processes and apparatuses for preparing permanent magnet stators
01/1981
01/28/1981EP0023073A1 Segmented magnet dynamoelectric machine with series connected rotor conductors
01/28/1981EP0023037A1 Small D.C. motor, especially for driving dentists' tools
01/14/1981EP0022413A1 Electric starter motor for internal combustion engines, in particular for automotive vehicles
01/07/1981EP0021270A1 Flat-type commutator motor
01/06/1981US4243903 Permanent magnet stator for a DC dynamo electric machine using blocking magnets
01/06/1981US4243902 Direct current motor with non-superposed armature windings
12/1980
12/02/1980US4237397 Electric machine, especially small motor
12/02/1980US4236295 Method of making rotor coil of coreless motor
11/1980
11/12/1980EP0018563A1 Armature for dynamoelectric machine
11/11/1980US4233532 Modular dynamoelectric machine
10/1980
10/16/1980WO1980002215A1 Permanent magnet generator
10/15/1980EP0017109A1 A direct current motor having E-shaped interpoles
10/14/1980US4228378 Wire wound disc armature for dynamoelectric machine
10/07/1980US4227107 Direct current motor with double layer armature windings
10/02/1980WO1980002089A1 Multi-turn rectangular wire armature coils
10/02/1980WO1980002088A1 Electromechanical machine
10/02/1980WO1980002087A1 Multiple windings electrical machines
10/01/1980EP0016473A1 A direct current motor having E-shaped interpoles and main poles with unsymmetrical pole pieces
09/1980
09/30/1980US4225799 Field magnet assembly
09/30/1980US4225798 Permanent magnet motor
09/23/1980US4224542 Small-sized motor with centrifugal governor switch
09/09/1980US4221984 Stator for multiple rotor D. C. magnetic motor
09/02/1980US4220882 Direct current motor
08/1980
08/26/1980US4219764 Apparatus for use with a motor drive
08/26/1980US4219753 Winding arrangement for a direct current electric machine
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