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Gerald S. Perkins

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  • Altadena, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Low noise lead screw positioner
    • Patent number 4,586,394
    • Issue date May 6, 1986
    • The United States of America as represented by the administrator of the Natio...
    • Gerald S. Perkins
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Reciprocating piston pump system with screw drive
    • Patent number 4,276,003
    • Issue date Jun 30, 1981
    • California Institute of Technology
    • Gerald S. Perkins
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Lead screw linear actuator
    • Patent number 4,232,562
    • Issue date Nov 11, 1980
    • California Institute of Technology
    • Gerald S. Perkins
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Wear resistant valve
    • Patent number 4,188,174
    • Issue date Feb 12, 1980
    • California Institute of Technology
    • Gerald S. Perkins
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Fast acting check valve
    • Patent number 4,150,925
    • Issue date Apr 24, 1979
    • California Institute of Technology
    • Gerald S. Perkins
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Long stroke pump
    • Patent number 4,145,165
    • Issue date Mar 20, 1979
    • California Institute of Technology
    • Gerald S. Perkins
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Sun tracking solar energy collector
    • Patent number 4,111,184
    • Issue date Sep 5, 1978
    • James C. Administrator of the National Aeronautics and Space Administration,...
    • F24 - HEATING RANGES VENTILATING