incorporating collectors and brushes

Patents Grantslast 30 patents

  • Information Patent Grant

    Multiphase to single phase and frequency converter system

    • Patent number 4,115,729
    • Issue date Sep 19, 1978
    • Tenna Power Corporation
    • Thomas A. Young
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Rotary inverters for converting D.C. to A.C.

    • Patent number 4,024,455
    • Issue date May 17, 1977
    • Lucas Industries Limited
    • Christopher John Yarrow
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3913004

    • Patent number 3,913,004
    • Issue date Oct 14, 1975
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3629688

    • Patent number 3,629,688
    • Issue date Dec 21, 1971
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3532949

    • Patent number 3,532,949
    • Issue date Oct 6, 1970
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3331007

    • Patent number 3,331,007
    • Issue date Jul 11, 1967
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3226497

    • Patent number 3,226,497
    • Issue date Dec 28, 1965
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3210642

    • Patent number 3,210,642
    • Issue date Oct 5, 1965
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3205427

    • Patent number 3,205,427
    • Issue date Sep 7, 1965
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3179873

    • Patent number 3,179,873
    • Issue date Apr 20, 1965
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3134863

    • Patent number 3,134,863
    • Issue date May 26, 1964
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3134864

    • Patent number 3,134,864
    • Issue date May 26, 1964
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3069615

    • Patent number 3,069,615
    • Issue date Dec 18, 1962
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3043922

    • Patent number 3,043,922
    • Issue date Jul 10, 1962
    • G01 - MEASURING TESTING
  • Information Patent Grant

    2986687

    • Patent number 2,986,687
    • Issue date May 30, 1961
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2980771

    • Patent number 2,980,771
    • Issue date Apr 18, 1961
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2842732

    • Patent number 2,842,732
    • Issue date Jul 8, 1958
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2831154

    • Patent number 2,831,154
    • Issue date Apr 15, 1958
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2796579

    • Patent number 2,796,579
    • Issue date Jun 18, 1957
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2767366

    • Patent number 2,767,366
    • Issue date Oct 16, 1956
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2764727

    • Patent number 2,764,727
    • Issue date Sep 25, 1956
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2732451

    • Patent number 2,732,451
    • Issue date Jan 24, 1956
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2686286

    • Patent number 2,686,286
    • Issue date Aug 10, 1954
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2606981

    • Patent number 2,606,981
    • Issue date Aug 12, 1952
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2499394

    • Patent number 2,499,394
    • Issue date Mar 7, 1950
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2493403

    • Patent number 2,493,403
    • Issue date Jan 3, 1950
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2493354

    • Patent number 2,493,354
    • Issue date Jan 3, 1950
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2460006

    • Patent number 2,460,006
    • Issue date Jan 25, 1949
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2434520

    • Patent number 2,434,520
    • Issue date Jan 13, 1948
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2420950

    • Patent number 2,420,950
    • Issue date May 20, 1947
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER