wherein the parts are rotating and collectors co-operate with brushes or rollers

Patents Grantslast 30 patents

  • Information Patent Grant

    Rotating field transformer

    • Patent number 5,754,420
    • Issue date May 19, 1998
    • John W. Luce
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Asynchronous intergrid transfer apparatus

    • Patent number 5,608,615
    • Issue date Mar 4, 1997
    • John W. Luce
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER