| Patents for H02P 1 - Arrangements for starting electric motors or dynamo-electric converters (9,872) |
|---|
| 05/17/1989 | CN2037896U Scr type starter for induction motor |
| 05/16/1989 | US4830412 Starting system and method using a hybrid permanent magnet/induction machine |
| 05/11/1989 | DE3836647A1 Control device |
| 05/09/1989 | US4829230 Motor control circuit for accurate speed control with capacitor leakage compensation |
| 05/05/1989 | WO1989003936A1 Starting system and method using a hybrid permanent magnet/induction machine |
| 05/03/1989 | CN2037122U Power saving controller |
| 04/26/1989 | CN2036726U Single-phase ac motor starter |
| 04/18/1989 | US4823064 Quick reset motor starting device |
| 04/11/1989 | US4820964 Solid state motor start circuit |
| 04/04/1989 | US4817371 Individual-motor drive method of and apparatus for spindles of a spinning machine |
| 03/29/1989 | CN2035157U Silicon controlled trigger controller for cascade speed controlling and smooth starting |
| 03/22/1989 | CN2034752U Transducer for electric current time |
| 03/22/1989 | CN2034751U Automatic cut-off device for starting element of single phase electric motor |
| 03/21/1989 | US4814964 Variable speed a-c drive |
| 03/14/1989 | US4812691 Device for improving the stability of rotation of the rotor of a single-phase synchronous motor |
| 03/09/1989 | DE3728609A1 Device for spin-dryer (centrifuge) starting current limiting and for preventing uncontrolled operating states in the event of power failures, especially in the case of washing machines |
| 03/08/1989 | CN2033960U Electronical starting switch of single-phase asynchronous motor |
| 03/08/1989 | CN2033959U Starting apparatus of motor |
| 03/02/1989 | DE3727696A1 Method and device for asynchronous motor acceleration of an asynchronous generator |
| 02/28/1989 | US4809025 Recording apparatus |
| 02/28/1989 | US4808896 Control device for heating deep-sea electric motor oil |
| 02/28/1989 | CA1250617A1 Energy economizer controlled-current start and protection for induction motors |
| 02/23/1989 | WO1989001569A1 Starting/generating system |
| 02/22/1989 | CN2033169U Singal phase long life electricity-saving motor |
| 02/14/1989 | US4804901 Motor starting circuit |
| 02/14/1989 | US4804900 Control apparatus for synchronous motors |
| 02/01/1989 | CN2031979U Starting device for self-starting permanent-magnet synchronous micromotor |
| 02/01/1989 | CN2031978U Motor's reduced voltage starting compensator |
| 01/31/1989 | US4801858 Motor starting circuit |
| 01/18/1989 | EP0166733B1 Combined starting/generating system and method |
| 01/17/1989 | CA1249048A1 Coffee grinder |
| 01/10/1989 | US4797602 Rare earth-iron magnet rotor, silicon-iron alloy stator-high electrical resistance magnetism |
| 01/04/1989 | EP0297223A2 Control unit for manual operation of reversible electric adjustment devices |
| 01/03/1989 | US4795953 Method of and electronic circuit for starting a reluctance motor and reluctance motor provided with such an electronic circuit |
| 12/28/1988 | CN88211474U Delay switch for high speed start of electric fan |
| 12/27/1988 | US4794288 Series resonant capacitor motor |
| 12/22/1988 | DE3728983C1 Single-phase asynchronous motor |
| 12/21/1988 | CN88102119A Winding type asynchronous motor and its manufacturing method |
| 12/21/1988 | CN87215806U Electricity-economizing protector of electric motor |
| 12/20/1988 | US4792740 Three-phase induction motor with single phase power supply |
| 12/13/1988 | CA1246702A1 Liquid resistance rheostat with electrolyte circulator |
| 12/13/1988 | CA1246664A1 Microprocessor based two speed motor control interface |
| 12/07/1988 | EP0294118A2 Method and apparatus for starting single phase motors |
| 11/23/1988 | CN88212301U Electronic power saving starting protector for single phase electric motor |
| 11/22/1988 | US4786850 Motor starting circuit with time delay cut-out and restart |
| 11/01/1988 | US4782278 In a single phase AC induction motor |
| 10/25/1988 | US4780653 Anti-stall motor drive |
| 10/19/1988 | CN88100138A Safety device for alternating current elevator |
| 10/11/1988 | US4777421 For starting/running electric induction motor |
| 09/29/1988 | DE3709107A1 Arrangement for controlling a star/delta contactor combination |
| 09/27/1988 | US4774448 Reversible variable-speed 2-phase electric motor |
| 09/27/1988 | US4774443 Driving mechanism for a switch |
| 09/27/1988 | US4774441 Motor control system |
| 09/21/1988 | EP0283109A2 Starter for single-phase induction motors |
| 09/21/1988 | EP0283049A2 Circuit arrangement for controlling starting and braking of three phase asynchronous motors and method for operating of such circuit arrangement |
| 09/21/1988 | EP0282598A1 Dc motor drive system. |
| 09/20/1988 | US4772842 Drive arrangement with a three-phase motor |
| 09/20/1988 | US4772814 Parallel resonant single phase motor |
| 09/20/1988 | US4772802 Starting/generating system |
| 09/13/1988 | US4770417 Method and apparatus for controlling a bowling ball lift mechanism |
| 09/07/1988 | CN87215144U Choked starter for electric motors |
| 08/31/1988 | CN87200689U Optimization device of single-phase asynchronous motor |
| 08/30/1988 | US4767975 Controller for induction motors |
| 08/30/1988 | CA1241366A1 Motor control circuit with automatic restart or cut- in |
| 08/16/1988 | US4764714 Electronic starting circuit for an alternating current motor |
| 08/16/1988 | US4764713 Method for starting a variable voltage inverter with a pre-spinning load motor |
| 08/16/1988 | US4764712 Method and apparatus for operating a field-oriented rotating-field machine supplied by a controlled converter |
| 08/09/1988 | US4763058 Method and apparatus for determining the flux angle of rotating field machine or for position-oriented operation of the machine |
| 08/03/1988 | CN87208687U Refrigerator's protector with power saving function |
| 08/03/1988 | CN87101420A Controller with buffer start and direction-changing functions |
| 08/02/1988 | US4761601 Motor starting circuit |
| 07/27/1988 | CN87211088U Auto display and power saving controller for star-delta high-speed adjusting |
| 07/26/1988 | US4760297 Small appliance driven by unidirectional single-phase synchronous motor |
| 07/20/1988 | CN87212289U Multifunctional power-saving controller for electrical machinery |
| 06/15/1988 | EP0140934B1 Start-up control method and apparatus for a polyphase induction motor |
| 06/15/1988 | CN87201897U Starting controller for single phase asynchronous electric motor |
| 06/14/1988 | US4751450 Low cost, protective start from coast circuit |
| 06/14/1988 | US4751449 Start from coast protective circuit |
| 06/08/1988 | CN86206797U Electronic starting switch for single phase split-phase motor |
| 06/01/1988 | DE3638440A1 Single-phase machine |
| 06/01/1988 | CN87104765A Multifunction control cabinet (or control box) |
| 05/25/1988 | EP0268020A1 A permanent magnet motor closed loop restarting system |
| 05/24/1988 | US4746850 Start-up system for a synchronous motor drive |
| 05/24/1988 | US4746845 Circuit for preventing the erroneous operation of a motor control device for lifting and lowering a power window |
| 05/17/1988 | US4745348 Apparatus for starting and running a plurality of three-phase motors from a single-phase power source |
| 05/17/1988 | US4745347 Low cost instant reversing circuit |
| 05/11/1988 | CN87213092U Two-direction running controller of a motor |
| 05/10/1988 | US4743816 Microprocessor based motor protective relay with transition control |
| 05/10/1988 | US4743777 Starter generator system with two stator exciter windings |
| 04/14/1988 | DE3633347A1 Adjusting device for a seat |
| 04/13/1988 | CN86207281U Multi-function star/delta controller for complete sets of electric motor |
| 04/07/1988 | DE3632349A1 Ventilating device for rooms |
| 04/05/1988 | US4736147 Method of starting motors by harmonics and electrical motors started by this method |
| 03/29/1988 | US4734634 Method and system for reconnecting inverter to rotating motors |
| 03/29/1988 | US4734601 Noise suppression circuit for parallel resonant motor |
| 03/24/1988 | DE3631732A1 Ventilating device for rooms |
| 03/24/1988 | DE3629826A1 Circuit arrangement for rotation speed regulation of a DC motor |
| 03/23/1988 | CN87202424U Single phase asynchronous motor without starting winding |
| 03/23/1988 | CN86106227A Wound rotor asynchronous motor started with no brush |
| 03/17/1988 | DE3630604A1 Starting control circuit |