Patents
Patents for H02K 29 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes, semiconductor devices (10,091)
11/1984
11/27/1984CA1178654A1 Induction type position system
11/27/1984CA1178636A1 Brushless disc-type dc motor or generator
11/21/1984EP0125502A1 Electronically commutated D.C. motor
11/20/1984US4484115 Brushless motor
11/14/1984EP0124547A1 A brushless direct current motor with inverted magnet cup
11/13/1984US4482849 Method and device for alignment of a brushless d.c. motor
11/13/1984US4482829 Brushless electric micromotor
11/13/1984CA1177880A1 Bifilar bruhless dc motor
11/06/1984US4481440 Permanent magnet brushless d-c motor with isolated sensor winding means
11/06/1984US4481436 Electric motor, process for mounting, and wiring subassembly
10/1984
10/31/1984EP0123347A1 Collectorless direct current motor with electronic commutation
10/24/1984EP0122677A1 Process for manufacturing an armature for an electric motor with electronic commutation, and armature manufactured by this process
10/23/1984CA1176699A1 Dc motor windings commutated by magnetically controllable electronic switches
10/16/1984US4476736 Transmission for a laundry machine
10/10/1984EP0121007A1 A combined position sensor and magnetic actuator
10/10/1984EP0120923A1 An improved magnetic motor tachometer assembly
10/02/1984US4475068 Brushless direct current motor with magnetically operated commutating switch means
09/1984
09/19/1984EP0118471A1 Electric machine
09/18/1984US4472665 Motor
09/18/1984US4472664 Cross-linked switching circuit for producing a two-phase current drive for a bipolar brushless motor and a brushless motor including said switching circuit
09/04/1984CA1173932A1 Position detecting signal generator
08/1984
08/30/1984WO1984003400A1 Redundant multiple channel electric motors and generators
08/08/1984EP0115315A1 Power transmitting device in a copying machine
08/08/1984EP0027799B1 Axial gap permanent magnet motor
08/02/1984WO1984003007A1 An improved brushless dc motor
07/1984
07/31/1984US4463299 Capacitive sensor motor control system
07/31/1984US4463291 Automatic control system and valve actuator
07/31/1984US4463290 Induction type positioning system
07/19/1984WO1984002810A1 Three-phase brushless motor
07/10/1984US4459519 Electronically commutated motor systems and control therefor
07/10/1984US4459502 Self-cascaded reluctance motor with axially laminated rotor
07/03/1984US4458184 Brushless D.C. motor having asymmetrically positioned poles
07/03/1984US4458167 D. C. Electric motor with improved stator and rotor structure
06/1984
06/26/1984US4456858 Permanent magnetic A.C.-D.C. motor
06/26/1984CA1169944A1 Rotation speed signal detector
06/20/1984EP0111443A1 Ventilator with an electronically commutated D.C. motor
06/19/1984US4455516 Brushless motor
05/1984
05/22/1984US4450396 Electrically controlled synchronous machine
05/10/1984WO1984001863A1 A brushless direct current motor with inverted magnet cup
05/08/1984US4447751 Direct current motor
04/1984
04/25/1984EP0106595A2 Multi-function machine tooling
04/18/1984EP0105687A1 Electronically commutated electric pump
04/12/1984WO1984001477A1 An improved magnetic motor tachometer assembly
03/1984
03/28/1984EP0104030A2 Tape driving capstan
03/28/1984EP0103821A2 Motor generator operating according to the reluctance principle
03/27/1984US4438542 Disk storage drive
03/20/1984US4438398 Position detecting signal generator
03/20/1984US4438362 Self-starting, direct current motor with permanent magnets of varied magnetic strength
03/20/1984US4437325 Laundry machine
03/15/1984WO1984001062A1 Electric machine
03/06/1984US4435673 DC Brushless motor and its driving control system
03/06/1984US4434546 Method of making a core
03/06/1984CA1163314A1 Hall element circuit for electronically commutating motor
02/1984
02/28/1984US4434389 Motor with redundant windings
02/28/1984CA1162966A1 Fan with integral disc-shaped drive
02/07/1984US4430603 Brushless direct current motor having a once-around pulse generating means
01/1984
01/31/1984US4429263 Low magnetic leakage flux brushless pulse controlled D-C motor
01/31/1984US4429240 In a DC brushless motor
01/03/1984US4424471 Electrical motor
12/1983
12/27/1983US4423359 Electric motor
12/21/1983EP0096468A2 Ferrite permanent magnet electrical machine and the application thereof within vehicle traction drives
11/1983
11/30/1983EP0094978A1 Rotatable electrical machine
11/24/1983WO1983004146A1 Annular, flat dc motor generator
11/22/1983US4417200 Current control
11/22/1983US4417186 Commutatorless electrical motor having sub magnetic poles
11/22/1983US4417167 DC Brushless motor
11/15/1983CA1157083A1 Control circuit for a self-starting electric motor
11/02/1983EP0092751A1 Compressor unit for heat pump equipment
09/1983
09/20/1983US4405885 Brushless dc motor
09/13/1983US4404504 High-efficiency, low-speed electric motor system
08/1983
08/16/1983CA1152145A1 Electric motor with rotational speed regulation
08/16/1983CA1152142A1 Permanent magnet brushless d.c. motor with hall switch controlled commutation
08/09/1983US4398134 Two-pulse permanent magnet brushless D-C motor
08/02/1983US4396875 DC Motor
08/02/1983CA1150962A1 Electronically commutated motor, stationary assembly and rotatable assembly therefor, lamination, method of making a core, laundry machine, transmission mechanism and drive therefor
07/1983
07/19/1983US4394594 Motor with a disk rotor
07/05/1983US4392094 Brushless D-C motor
06/1983
06/28/1983US4390826 Laundering apparatus, method of operating a laundry machine, control system for an electronically commutated motor, method of operating an electronically commutated motor, and circuit
06/14/1983USRE31278 Brushless D-C motor
05/1983
05/24/1983CA1147019A1 Motor energizing circuit including free-running diodes and demagnetization windings
05/11/1983EP0078557A1 Direct current electrical machine, without brush, with a permanent magnet rotor
05/03/1983US4382214 Direct current motor
04/1983
04/13/1983EP0076694A2 4-Pole electric motor
04/13/1983EP0076519A2 Encoder with position detecting device
03/1983
03/08/1983US4376261 Two-pulse brushless d.c. motor
02/1983
02/23/1983EP0072597A2 Self-starting brushless D.C. motor
02/15/1983US4374347 Brushless d-c motor system
02/08/1983US4373148 Rotating electric machine having a toroidal wound motor winding
02/08/1983CA1140984A1 Direct current motor with a dipole stator
02/01/1983US4371817 Brushless, permanent magnet d-c pulse current controlled, essentially uniform torque dynamo electric machine, particularly motor
01/1983
01/19/1983EP0069751A1 Electric motors.
01/18/1983US4369388 Direct current motor with non-superposed armature windings
12/1982
12/28/1982US4366405 Tachogenerator having stray flux cancelling output coils
12/21/1982US4365187 Brushless D.C. motor
12/14/1982US4364005 Brushless tachometer generator
12/01/1982EP0065614A1 Fast reaction servo drive
11/1982
11/30/1982US4361789 Small D.C. motor
11/30/1982US4361776 Coil assembly for flat brushless motor
11/23/1982US4360753 Motor having concentric ring rotor
11/23/1982US4360751 Fan with integral disc-shaped drive
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