TREA

Herbert L. Ritchie Jr.

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  • North Ridgevill, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Molten metal transfer pump
    • Patent number 5,947,705
    • Issue date Sep 7, 1999
    • Metaullics Systems Co., L.P.
    • George S. Mordue
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Torque coupling system
    • Patent number 5,028,211
    • Issue date Jul 2, 1991
    • The Carborundum Company
    • George S. Mordue
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Torque coupling system for graphite impeller shafts
    • Patent number 5,025,198
    • Issue date Jun 18, 1991
    • The Carborundum Company
    • George S. Mordue
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...