Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02P - Control or regulation of electric motors, generators, or dynamo-electric converters; Controlling transformers or reactors or choke coils › H02P 3 - Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
Patents for H02P 3 - Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters (5,905)
06/1979
06/19/1979US4158797 Power hoist
06/12/1979US4158159 Electronic circuit controller for windshield wiper drive motor
06/12/1979CA1056447A1 Plugging control
05/1979
05/30/1979EP0002116A1 Control circuit for a D.C. motor for example in an electrically powered vehicle
04/1979
04/24/1979US4151453 Induction motor control system
04/03/1979US4147965 Switching device for feeder in machine tools
03/1979
03/20/1979US4145640 Electric cart drive control system
03/13/1979US4144482 Dynamic brake circuit for motor
03/06/1979CA1050145A1 Train vehicle control apparatus
02/1979
02/20/1979US4140382 Drive control circuit of motor drive unit
02/06/1979US4137860 Electrical drive system for a sewing machine
01/1979
01/02/1979US4132934 Electric motor driven vehicles
11/1978
11/28/1978US4127799 Apparatus for damping rotation of turntable
11/21/1978CA1042978A1 Over-speed preventing apparatus for dc motor
11/07/1978US4124812 Braking control apparatus for an electric motor operated vehicle
11/07/1978US4124088 Safety device for a vehicle
10/1978
10/31/1978US4123693 Transit vehicle generated voltage control apparatus and method
10/24/1978CA1041181A1 Feed motor control circuit for automatic electric arc-welder
10/17/1978US4121141 D.C. motor speed control circuitry
10/03/1978CA1039835A1 Motor control systems
09/1978
09/19/1978US4115727 Braking system for three phase motors
09/05/1978US4112341 Drive and brake circuit for speed controlled DC motors
08/1978
08/29/1978US4110670 Braking apparatus
08/29/1978CA1037558A1 D. c. motor control having gating control of a full-wave rectifier system
08/22/1978CA1037114A1 Commutating oscillator and current-limiter for solid state switching circuits
08/08/1978US4104978 Protective device in a motor-operated sewing machine
08/01/1978US4104571 Pulse controllers
07/1978
07/25/1978US4103211 Dynamic drag arrangement for electrically propelled traction vehicles
07/25/1978US4102436 Elevator system
06/1978
06/20/1978US4096423 Direct current motor chopper propulsion system
06/13/1978US4095154 Regenerative braking system for a chopper controlled electric traction motor
06/13/1978US4095153 Transit vehicle electrical brake control apparatus and method
06/13/1978US4095152 Regenerative brake control system for dc motor
06/13/1978US4095151 Circuit arrangement for an a-c series motor
06/06/1978US4093900 Dynamic brake blending for an inverter propulsion system
05/1978
05/30/1978US4092577 Dynamic braking of direct current motors
05/16/1978US4090117 Magnetic disc apparatus
05/02/1978US4087728 Adjustable stroke electric motor using stroke adjusting linkage means
05/02/1978US4087727 Regenerative brake control system for DC motor
04/1978
04/25/1978US4085692 Motor control apparatus for electrically-driven sewing machine
04/18/1978US4085354 Tape transport dynamic brake
04/11/1978US4083431 Elevator control apparatus
03/1978
03/14/1978US4079296 Variable speed AC motor control circuit
03/14/1978US4078933 Silver halide photographic light-sensitive element containing dye
03/14/1978US4078507 Electrically driven sewing machine control apparatus
02/1978
02/14/1978US4074176 Motor protector
01/1978
01/10/1978US4068153 Plugging control
12/1977
12/13/1977US4063137 Electric braking apparatus for alternating current motors
12/06/1977US4061948 Or electrically braked motors of spinning machines
11/1977
11/08/1977US4057753 Train vehicle control apparatus
10/1977
10/18/1977US4054943 Circuit arrangement for the automatic de-excitation of a hysteresis motor
10/18/1977US4054819 Motor angular velocity monitor circuit
10/04/1977US4052649 Hand held variable speed drill motor and control system therefor
09/1977
09/27/1977US4051421 Braking mode control for a chopper controlled d-c electric motor
09/06/1977US4046229 Elevator system
08/1977
08/16/1977US4042865 Separately excited D.C. motors
08/16/1977US4042863 Incrementally controllable motor drive system
08/02/1977US4039914 Dynamic braking in controlled current motor drive systems
07/1977
07/19/1977US4037146 Output selection control system
06/1977
06/28/1977US4032982 Adaptive voltage control of motor in an incrementing magnetic tape transport
06/28/1977US4032825 Commutating oscillator and current-limiter for solid state switching circuits
06/21/1977US4031439 Over-speed preventing apparatus for DC motor
06/14/1977US4030111 Power-operated actuator for a film advance mechanism of a camera
06/14/1977US4030008 Single phase alternating current motor dual speed control circuit
06/14/1977US4030007 Direct current braking means for wound rotor motor
06/07/1977US4028597 Motor control systems
05/1977
05/31/1977US4027220 Regenerative motor control having improved field circuit
05/10/1977US4022598 Air conditioning
03/1977
03/08/1977US4011492 Chopper motor controller having pulse-by-pulse sensing of plugging
03/08/1977US4011490 Apparatus for immobilizing a working shaft at a predetermined angular position
02/1977
02/15/1977US4008423 Electrically propelled vehicle
01/1977
01/18/1977US4003647 Claw mechanism
12/1976
12/14/1976US3997827 Shaded pole electric motor and brake
12/07/1976US3996504 Regenerative motor control having field and armature coordinating means
11/1976
11/30/1976US3995204 Braking mode control for an electric traction motor
11/09/1976US3991352 Apparatus and method for reducing effective inductance in a dynamic braking circuit
10/1976
10/19/1976US3987349 Control systems of electric motors for driving electric motor cars
10/12/1976US3986093 Passive seatbelt system
10/05/1976US3984743 Regenerative braking controller for D.C. motor
09/1976
09/28/1976US3983465 Electric braking control apparatus for DC motor
09/07/1976US3979651 Direct current and synchronous motor system
08/1976
08/17/1976US3975668 Dynamic braking for a three phase motor
08/17/1976US3975616 Control circuit for automatic electric arc-welder
08/10/1976US3974422 Circuit arrangement for overload protection of a drive motor
08/03/1976US3973175 Induction motor speed control apparatus
07/1976
07/27/1976US3971971 Electric hoist control and braking system
07/27/1976US3971204 Circuit for driving a DC motor for a clock
07/20/1976US3970897 Detector and apparatus incorporating the same for detecting phase-asymmetry and protecting three-phase motors against dangerous operating conditions
07/13/1976US3969661 Motor control apparatus
07/06/1976US3968414 Bypass contactor control
06/1976
06/29/1976US3967175 Automatic sequencing scheme for reversing directions of electric traction motors
06/22/1976US3965404 Apparatus and method of braking a universal motor for operating a compact winch
06/22/1976US3964444 Control circuit for an electromotor
06/15/1976US3963970 Control circuit for servo-motors
05/1976
05/18/1976US3958166 Speed adjusting apparatus
05/18/1976US3958163 Method and apparatus for plug sensing
04/1976
04/27/1976US3953777 Control circuit for shutting off the electrical power to a liquid well pump
04/20/1976US3952330 Electronic control circuit for the drive motor of a magnetic sound device
03/1976
03/30/1976US3947740 Regenerative brake control system for DC motor
03/30/1976US3947739 Regenerative braking controller for a DC motor
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