TREA

Leopold A. Hein

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  • Fayetteville, TN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tube coupling device
    • Patent number 4,655,482
    • Issue date Apr 7, 1987
    • The United States of America as represented by the administrator of the Natio...
    • William N. Myers
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Resilient seal ring assembly with spring means applying force to we...
    • Patent number 4,410,189
    • Issue date Oct 18, 1983
    • The United States of America as represented by the administrator of the Natio...
    • William N. Myers
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Amplified wind turbine apparatus
    • Patent number 4,309,146
    • Issue date Jan 5, 1982
    • The United States of America as represented by the administrator of the Natio...
    • Leopold A. Hein
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Apparatus for concentrating solar energy
    • Patent number 4,139,286
    • Issue date Feb 13, 1979
    • Leopold A. Hein
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Spherical bearing
    • Patent number 4,105,261
    • Issue date Aug 8, 1978
    • The United States of America as represented by the administrator of the Natio...
    • William N. Myers
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Solar heating and cooking apparatus
    • Patent number 4,018,212
    • Issue date Apr 19, 1977
    • Leopold A. Hein
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Mechanical thermal motor
    • Patent number 3,987,630
    • Issue date Oct 26, 1976
    • The United States of America as represented by the administrator of the Natio...
    • Leopold A. Hein
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...