TREA

Frederick A. Hekman

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  • Grand Rapids, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary device with thermally compensated seal
    • Patent number 5,452,997
    • Issue date Sep 26, 1995
    • Autocam Corporation
    • Frederick A. Hekman
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Internally constrained vane compressor
    • Patent number 5,181,843
    • Issue date Jan 26, 1993
    • Autocam Corporation
    • Edward W. Hekman
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Constrained vane compressor with oil skive
    • Patent number 5,169,298
    • Issue date Dec 8, 1992
    • Autocam Corporation
    • Edward W. Hekman
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES