whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value

Patents Grantslast 30 patents

  • Information Patent Grant

    Closed control device for DC brush motor, control system, and contr...

    • Patent number 10,770,995
    • Issue date Sep 8, 2020
    • Kabushiki Kaisha Toshiba
    • Hideki Kimura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    System and method for speed control and stall protection combinatio...

    • Patent number 7,486,489
    • Issue date Feb 3, 2009
    • Siemens Canada Limited
    • Corneliu Dragoi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Shunt-type speed control circuit having transient storage effect fo...

    • Patent number 5,703,448
    • Issue date Dec 30, 1997
    • Tai-Her Yang
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Electric vehicle speed control

    • Patent number 4,675,585
    • Issue date Jun 23, 1987
    • Outboard Marine Corporation
    • William R. Krueger
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Speed sensitive field weakening control for traction motors

    • Patent number 4,260,937
    • Issue date Apr 7, 1981
    • Outboard Marine Corporation
    • David T. Cavil
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Tape tension control for tape recording and/or reproducing system

    • Patent number 4,218,639
    • Issue date Aug 19, 1980
    • Nippon Electric Company, Ltd.
    • Isao Sanguu
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Speed sensitive field weakening control for traction motors

    • Patent number 4,131,832
    • Issue date Dec 26, 1978
    • Outboard Marine Corporation
    • David T. Cavil
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Safety features for electric vehicle control

    • Patent number 4,090,114
    • Issue date May 16, 1978
    • Westinghouse Electric Corp.
    • Francis T. Thompson
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Flux corrective control apparatus for motor drives

    • Patent number 4,048,550
    • Issue date Sep 13, 1977
    • Westinghouse Electric Corporation
    • Walter R. Harris
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Common bus parallel speed regulator system

    • Patent number 4,047,080
    • Issue date Sep 6, 1977
    • Westinghouse Electric Corporation
    • Robert S. Peterson
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Separately excited D.C. motors

    • Patent number 4,042,865
    • Issue date Aug 16, 1977
    • Sevcon Limited
    • David Gurwicz
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Feedback field control for an electric vehicle

    • Patent number 3,989,990
    • Issue date Nov 2, 1976
    • Westinghouse Electric Corporation
    • Francis T. Thompson
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Pulsed power supply

    • Patent number 3,947,738
    • Issue date Mar 30, 1976
    • Reliance Electric Company
    • Theodore A. Oliver
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3898893

    • Patent number 3,898,893
    • Issue date Aug 12, 1975
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    3384799

    • Patent number 3,384,799
    • Issue date May 21, 1968
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3360705

    • Patent number 3,360,705
    • Issue date Dec 26, 1967
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3183427

    • Patent number 3,183,427
    • Issue date May 11, 1965
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    1981040

    • Patent number 1,981,040
    • Issue date Nov 20, 1934
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    1573508

    • Patent number 1,573,508
    • Issue date Feb 16, 1926
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents