| Patents for H02P 5 - Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors (4,788) |
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| 03/22/1983 | US4377777 Switching drive circuit |
| 03/22/1983 | CA1143457A1 Automatic position control for a vehicle seat |
| 03/15/1983 | US4376913 Method and apparatus for synchronously driving AC synchronous motors |
| 02/09/1983 | EP0071352A1 Control system for a press line |
| 02/01/1983 | US4370777 Electric motor control for vacuum cleaner |
| 01/26/1983 | EP0070651A1 Control system for a press having a synchronized feed mechanism |
| 01/25/1983 | US4369915 Method and apparatus for regulating the differential rpm of two rotating parts |
| 01/25/1983 | US4369658 Device for detecting differences in the speeds of rotation of two shafts |
| 01/18/1983 | US4369397 Motor control apparatus for a motorized vehicle, and method therefor |
| 12/29/1982 | EP0067886A1 Induction motor drive system |
| 12/20/1982 | EP0057680A4 Dual motor drive system. |
| 11/30/1982 | US4361788 Dual-motor drive circuit with high current switching |
| 11/25/1982 | WO1982004140A1 Synchronous operation device |
| 11/17/1982 | EP0064659A2 Device for feeding wire at great distances |
| 11/17/1982 | EP0064579A1 Yarn winding apparatus |
| 11/03/1982 | EP0063850A1 Device for controlling the synchronism of two motors |
| 11/02/1982 | US4357565 Control apparatus for variable-speed reversible motor |
| 10/19/1982 | US4354393 Phase locked gyroscope wheel supply for synchronous hysteresis motor |
| 10/05/1982 | US4353018 Control system for synchronized operation of machine tool motors |
| 10/05/1982 | US4353015 Apparatus for changing the relative phase angles of output shafts of a multiple motor electric drive |
| 09/07/1982 | CA1131299A1 Multiple-motor battery tapping control system |
| 08/24/1982 | US4345721 Apparatus for the variable speed control of cams in textile machines |
| 08/18/1982 | EP0057680A1 Dual motor drive system. |
| 07/22/1982 | WO1982002461A1 Induction motor drive system |
| 07/20/1982 | US4340971 Dental radiographic apparatus for photographing entire jaws |
| 07/06/1982 | CA1127232A1 Digital speed control method and apparatus |
| 06/16/1982 | EP0053684A2 Stepper motor drive apparatus and printer embodying the same |
| 06/15/1982 | US4335337 Control system for electric motor vehicle |
| 06/15/1982 | US4335336 Device for controlling speed |
| 06/09/1982 | EP0053414A1 Circuit arrangement for regrouping several drive units |
| 06/08/1982 | US4334176 Method of and means for controlling electrical devices |
| 06/08/1982 | US4334175 Digital speed control method and apparatus |
| 06/01/1982 | US4332461 Electrical drive for scanning optics in a continuously variable reduction copier |
| 05/25/1982 | US4331984 Method and apparatus for synchronizing facsimile transmissions |
| 05/19/1982 | EP0051602A1 Dual-motor drive circuit with high current switching |
| 05/11/1982 | CA1123487A1 Control for mechanically and electrically connected modular motor |
| 04/29/1982 | WO1982001350A1 Control unit and control method for an a.c.electric car |
| 04/20/1982 | US4326152 System for controlling the in-phase operation of a pair of motors |
| 04/15/1982 | WO1982001283A1 Variable-speed electrical machines |
| 04/13/1982 | US4325015 Dual motor drive for machine tool |
| 04/07/1982 | EP0049106A1 Variable-speed electrical machines |
| 04/06/1982 | US4323829 Capacitive sensor control system |
| 03/04/1982 | WO1982000738A1 Failure protection circuit for a tow-motor lift truck |
| 02/02/1982 | CA1117627A1 Protective circuit for selectively applying power to a motor |
| 01/12/1982 | CA1116268A1 Low speed servo control |
| 01/05/1982 | US4309642 Device for feeding a wire electrode |
| 12/29/1981 | US4308489 Method and apparatus for coordinating the speeds of motions |
| 12/29/1981 | US4307848 Device for controlling the take-up speed of a winding frame |
| 11/12/1981 | WO1981003249A1 Dual-motor drive circuit with high current switching |
| 11/03/1981 | US4298831 Method and apparatus for operating a plurality of parallel coupled, arbitrarily loaded induction machines from a single controlled current inverter |
| 10/20/1981 | US4296361 Control systems |
| 10/07/1981 | EP0037307A1 Speed control system for an induction motor with a double stator |
| 09/29/1981 | US4292572 Method and apparatus for regulating electric motor armature currents |
| 09/15/1981 | US4289997 Drive apparatus having at least two electric motors |
| 09/15/1981 | US4289996 Actuators |
| 09/08/1981 | US4288727 Modular motor and control means and method |
| 09/01/1981 | US4287461 Motor driving system |
| 08/25/1981 | US4286163 Dental radiographic apparatus for photographing entire jaws |
| 08/25/1981 | CA1107815A1 Drive circuit for a brushless motor |
| 08/19/1981 | EP0034033A1 Electric motor drive control system |
| 08/18/1981 | US4284929 Ambulator control circuitry |
| 07/14/1981 | US4277945 Control system for equalizing the torques of multiple engines driving a common load |
| 07/14/1981 | CA1105118A1 Control system for a multiple spindle machine |
| 06/30/1981 | US4275822 Apparatus for metering at least two reaction components into a mixing chamber |
| 06/23/1981 | US4275394 Radio control driving circuit device |
| 06/17/1981 | EP0030416A1 Drive control system for motors in numerically controlled machine tools |
| 06/17/1981 | EP0030302A2 Servosystem for controlling acceleration and deceleration of a servo motor |
| 06/17/1981 | EP0030282A1 Electrophotographic copier with reduction mode facility and control of scanning carriage |
| 06/02/1981 | US4271384 Synchronous motor drive |
| 06/02/1981 | US4271379 Web fed printing press motor control |
| 05/26/1981 | US4270072 Current supply circuit of cutting drum motors on a mining machine |
| 04/28/1981 | US4264849 Apparatus for positioning a movable device, especially the passenger seats in a motor vehicle |
| 04/22/1981 | EP0027407A1 Device for detecting a difference between the rotating speeds of two turning shafts and application to a measurement or a control servicing |
| 04/21/1981 | CA1099805A1 Electronic wire twisting |
| 04/14/1981 | CA1099377A1 All-electric a.c. tractor |
| 04/14/1981 | CA1099371A1 Control system for multi-stage reducing apparatus |
| 04/01/1981 | EP0026048A1 Method of and means for controlling operation of electric devices |
| 03/31/1981 | US4259622 Circuit arrangement for driving and for independent recuperation braking of a vehicle |
| 03/31/1981 | US4259621 Arrangement for guiding the rotary speed of one or more follower motors in response to the pulse frequency of a guide pulse frequency generator |
| 03/25/1981 | EP0025652A1 Control system for synchronising machine tool motors for tapping operations |
| 03/19/1981 | WO1981000795A1 Method of and means for controlling electrical devices |
| 03/17/1981 | US4256983 Voltage-to-frequency converter having a constant frequency mode of operation |
| 02/24/1981 | US4253050 Method and apparatus for the synchronization of a gear machining apparatus |
| 02/24/1981 | CA1096472A1 Tape control apparatus |
| 02/03/1981 | US4249086 Vehicular side mirror control |
| 02/03/1981 | US4248054 Refrigeration system with load balancing control for at least three centrifugal compressors |
| 01/20/1981 | US4245955 Phase and speed control system |
| 01/13/1981 | US4245295 Apparatus for the controlled voltage supply of D.C. drives |
| 12/30/1980 | CA1092706A1 Video signal reproducing apparatus with a track searching arrangement |
| 12/10/1980 | EP0020211A1 Speed control device |
| 11/25/1980 | US4236216 Control system of interstand tension of continuous rolling mills |
| 11/18/1980 | US4234787 Apparatus for monitoring the motion of shuttles in looms or the like |
| 11/13/1980 | WO1980002487A1 Voltage-to-frequency-converter |
| 10/29/1980 | EP0017816A1 Device for changing the relative phase-angle positions of the drive shafts of an electric gang drive |
| 10/21/1980 | USRE30422 Graphic recorder |
| 10/07/1980 | US4227130 Torque compensation system |
| 10/07/1980 | US4227126 Shaft rotation interlock system for film editing tables and the like |
| 10/01/1980 | EP0016714A1 Improved equipment for controlling the variations in speed of cam-boxes of a textile machine |
| 09/23/1980 | US4224558 Selectable servo ratio and dual speed control system for large centrifuge units |
| 09/16/1980 | US4222512 Device for controlling rotary motion |