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Melvin H. Hallmann

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  • Middletown, IN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Dual-face cooling fan for a dynamoelectric machine
    • Patent number 4,961,016
    • Issue date Oct 2, 1990
    • General Motors Corporation
    • Yuchi P. Peng
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Self oscillating vacuum actuator
    • Patent number 4,470,338
    • Issue date Sep 11, 1984
    • General Motors Corporation
    • Kenneth H. Clayton
    • B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
  • Information Patent Grant

    Piezoelectric knock sensor
    • Patent number 4,371,804
    • Issue date Feb 1, 1983
    • General Motors Corporation
    • Yuchi P. Peng
    • B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
  • Information Patent Grant

    Automatic tension control mechanism for a drive belt
    • Patent number 4,300,890
    • Issue date Nov 17, 1981
    • General Motors Corporation
    • Melvin H. Hallmann
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Automatic belt tensioner
    • Patent number 4,298,342
    • Issue date Nov 3, 1981
    • General Motors Corporation
    • Kenneth H. Clayton
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...