TREA

William T. Stephens

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  • New Brighton, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hydraulic valve having pressure compensated demand flow
    • Patent number 4,253,482
    • Issue date Mar 3, 1981
    • Gresen Manufacturing Company
    • William T. Stephens
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic pump or motor
    • Patent number 4,075,933
    • Issue date Feb 28, 1978
    • Gresen Manufacturing Company
    • William T. Stephens
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Orbital device
    • Patent number 4,025,243
    • Issue date May 24, 1977
    • Gresen Manufacturing Company
    • William T. Stephens
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES