Patents
Patents for H02K 29 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes, semiconductor devices (10,091)
11/1982
11/16/1982US4359657 Rotation speed signal detector
11/16/1982CA1135788A1 Electronically commutating motor
11/02/1982US4357563 Direct current brushless electric motor
11/02/1982US4357550 Brushless D.C. motor
10/1982
10/19/1982US4355255 Brushless direct current motor and control therefor
10/12/1982US4354126 Dynamoelectric machine with a permanent magnet rotor having laminated poles
10/05/1982CA1133127A1 Disc recorder with brushless dc motor drive
09/1982
09/29/1982EP0060894A1 D.c. generator type non-contact speed sensing device
09/15/1982EP0060143A1 Electrical motor
09/15/1982EP0059763A1 D.c. generator type non-contact speed sensing device
09/07/1982US4348605 Electrical reluctance machine
08/1982
08/31/1982US4347464 FET Motor drive system
08/19/1982WO1982002803A1 Brushless disc-type dc motor or generator
08/05/1982WO1982002619A1 Electric motors
07/1982
07/20/1982US4340833 Miniature motor coil
07/20/1982US4339875 Method of assembling a galvanomagnetic sensor in a cavity in a conducting plate
07/06/1982CA1127233A1 Inertia wheel
06/1982
06/29/1982US4337491 Brushless D.C. motor assembly
06/22/1982US4336475 Slotless brushless motor
06/08/1982US4334166 Rotary magnetic sensor
06/01/1982US4333015 Solid-state commutator for use in electric motors
05/1982
05/26/1982EP0052346A2 Electrical drive or generator
05/26/1982EP0052345A2 Rotary energy storage unit
05/26/1982EP0052344A2 Rotary drive or rotary generator
05/26/1982EP0052343A2 Electric machine
05/25/1982CA1124323A1 Controllable electrical single-armature or rotary converter
05/11/1982US4329636 Rotation sensor device
05/11/1982US4329604 Low loss brushless DC motor
04/1982
04/28/1982EP0050582A2 Brushless DC motor driven cryogenic refrigeration system
04/27/1982US4327302 Electronically commutated motor, stationary and rotatable assemblies therefore, and lamination
04/15/1982WO1982001252A1 D.c.generator type non-contact speed sensing device
04/13/1982US4324994 Drive unit with a motor
04/01/1982WO1982001074A1 D.c.generator type non-contact speed sensing device
03/1982
03/30/1982US4322666 Brushless, permanent magnet d-c pulse current controlled, essentially uniform torque dynamo electric machine particularly motor
03/30/1982CA1121022A1 Rotational speed signal sensor
03/10/1982EP0046997A2 Electric wheel drive for vehicles, in particular for hybrid passenger cars
02/1982
02/23/1982US4317072 Electric motor with rotational speed regulation
02/18/1982WO1982000548A1 Rotor position sensor
01/1982
01/19/1982US4311933 Brushless direct current motor
01/19/1982CA1116682A1 Axial air gap dynamo-electric machine
01/06/1982EP0043138A1 Electronic commutating device for direct current machines with several winding strands
01/05/1982US4309647 Commutatorless motor device
01/05/1982CA1115771A1 Seven phase rotary machine apparatus
12/1981
12/23/1981EP0041988A1 Motor system
12/22/1981US4306419 Brushless DC motor driven cryogenic refrigeration system
12/16/1981EP0041846A1 Induction type positioning system
12/15/1981US4306259 Flexible-disc drive spindle assembly with brushless DC motor
12/15/1981CA1114446A1 Control arrangement for a brushless motor
12/01/1981US4303210 Tape drive device
11/1981
11/25/1981EP0040484A2 Brushless D.C. motors
11/24/1981US4302692 Rotational speed signal sensor
11/17/1981CA1112706A1 Tape recorder motor with internal clutch
11/17/1981CA1112705A1 Flat-permanent-magnet rotor for brushless d.c. motor
11/11/1981EP0039649A1 Electric direct current motor
11/10/1981CA1112276A1 Direct current motor having outer rotor and inner stator
10/1981
10/28/1981EP0038694A1 Electronically commutated motors for laundering machines
10/06/1981USRE30761 Three-phase DC motor having non-superimposed armature coils
10/06/1981CA1110357A1 Magnetic tape recording and/or reproducing apparatus
09/1981
09/29/1981US4292575 Control signal transmitter for the commutating device of an electronically commutated d-c motor
09/29/1981US4292557 Motor with integral clutch
09/29/1981CA1109916A1 Stator yoke for electrical apparatus
09/22/1981US4291248 Electric motor
09/15/1981US4289998 Single phase DC brushless motor
08/1981
08/25/1981US4286198 Direct current motor unit without commutator
08/25/1981US4286184 Electronic motor having a multi-pole external rotor
08/11/1981US4283646 Brushless electric motor
08/11/1981US4283644 DC Motor
08/11/1981CA1106892A1 Brushless dc motor
08/06/1981EP0027799A4 Axial gap permanent magnet motor.
07/1981
07/28/1981US4281265 Disc motor with A.C. and D.C. stator windings
07/22/1981EP0032441A2 Brushless D.C. motor and control circuit therefor
07/21/1981US4280072 Rotating electric machine
07/14/1981US4278927 Axial gap permanent magnet motor
07/01/1981EP0031026A2 Brushless DC motor
06/1981
06/30/1981US4276490 Brushless DC motor with rare-earth magnet rotor and segmented stator
06/23/1981US4275339 Bifilar brushless DC motor
06/16/1981US4273334 Reel mechanism for use in a playing device
06/16/1981CA1103298A1 Electric motor with discrete rotor position and speed sensors
06/11/1981WO1981001633A1 Motor system
06/10/1981EP0030008A2 Miniature motor coil
05/1981
05/26/1981US4270075 Motor energized by a DC voltage
05/12/1981CA1100885A1 Record player with direct drive turntable
05/06/1981EP0027799A1 Axial gap permanent magnet motor.
04/1981
04/07/1981US4260920 Multi-pole permanent magnet rotor
03/1981
03/31/1981US4259603 Electric motor
03/17/1981US4256997 Apparatus for the supply, regulation and control of direct current electrical machines
02/1981
02/04/1981EP0023221A1 Direct current motor without collector
01/1981
01/28/1981EP0023123A1 Brushless tachometer generator
01/27/1981CA1094626A1 Brush-less dc motor
01/06/1981US4243902 Direct current motor with non-superposed armature windings
01/06/1981CA1093208A1 Apparatus for damping rotation of turntable
12/1980
12/30/1980US4242608 Motor using Hall effect elements
12/10/1980EP0020178A1 Rotational speed detector
12/09/1980US4238822 Controllable electrical single-armature of rotary converter
11/1980
11/18/1980US4234831 Compound rotary and/or linear motor
11/12/1980EP0018904A1 Commutatorless D.C. motor
10/1980
10/21/1980US4229682 Electronically commutating motor
10/14/1980US4228384 Brushless DC printed motor
10/07/1980US4227107 Direct current motor with double layer armature windings
09/1980
09/18/1980WO1980001898A1 Axial gap permanent magnet motor
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