TREA

Richard W. Hall

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  • Springfield, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Double-acting forging hammer and method
    • Patent number 4,796,428
    • Issue date Jan 10, 1989
    • Oilgear Towler, Inc.
    • Richard W. Hall
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Regeneration system for a hydraulic intensifier unit
    • Patent number 4,555,220
    • Issue date Nov 26, 1985
    • Towler Hydraulics, Inc.
    • Richard W. Hall
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Quadraplex fluid pump
    • Patent number 4,470,771
    • Issue date Sep 11, 1984
    • Towler Hydraulics, Inc.
    • Richard W. Hall
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Hydraulic intensifier control system
    • Patent number 3,981,622
    • Issue date Sep 21, 1976
    • Kelsey-Hayes Company
    • Richard W. Hall
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Hydraulic intensifier
    • Patent number 3,967,542
    • Issue date Jul 6, 1976
    • Kelsey-Hayes Company
    • Richard W. Hall
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES