TREA

John K. Penrod

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  • Bellbrook, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electrical lighting controller
    • Patent number 4,434,388
    • Issue date Feb 28, 1984
    • LeRoy J. Carver
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Power contactor and control circuit
    • Patent number 4,152,634
    • Issue date May 1, 1979
    • Power Management Corporation
    • John K. Penrod
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Cooling arrangement for electrical power contactor
    • Patent number 4,060,847
    • Issue date Nov 29, 1977
    • Power Management Corporation
    • John K. Penrod
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Contactor device including arc supression means
    • Patent number 4,025,820
    • Issue date May 24, 1977
    • Power Management Corporation
    • John K. Penrod
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Electronic underfrequency relay
    • Patent number 3,993,984
    • Issue date Nov 23, 1976
    • Power Management Corporation
    • John K. Penrod
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Arc suppressor circuit
    • Patent number 3,982,137
    • Issue date Sep 21, 1976
    • Power Management Corporation
    • John K. Penrod
    • H01 - BASIC ELECTRIC ELEMENTS