TREA

Michael Thomas Spellman

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  • Indianapolis, IN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fan spider with rake angle
    • Patent number 4,242,046
    • Issue date Dec 30, 1980
    • Wallace Murray Corporation
    • Joseph V. Matucheski
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Flexible bladed fan construction
    • Patent number 4,172,693
    • Issue date Oct 30, 1979
    • Wallace Murray Corporation
    • William D. Barton
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Twisted flex fan
    • Patent number 4,105,366
    • Issue date Aug 8, 1978
    • Wallace Murray Corporation
    • Michael T. Spellman
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Twisted flex fan
    • Patent number 4,012,168
    • Issue date Mar 15, 1977
    • Wallace Murray Corporation
    • Michael Thomas Spellman
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...