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Clifford M. Peters

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  • Longview, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Block valve
    • Patent number 4,530,377
    • Issue date Jul 23, 1985
    • Joy Manufacturing Company
    • Clifford M. Peters
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Double acting pilot valve
    • Patent number 4,491,154
    • Issue date Jan 1, 1985
    • Joy Manufacturing Company
    • Clifford M. Peters
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pull type relay valve with automatic lockout
    • Patent number 4,364,412
    • Issue date Dec 21, 1982
    • W-K-M Wellhead Systems, Inc.
    • Clifford M. Peters
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Safety valve
    • Patent number 4,347,867
    • Issue date Sep 7, 1982
    • W-K-M Wellhead Systems, Inc.
    • Clifford M. Peters
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Push-type control valve for fluid actuator
    • Patent number 4,320,779
    • Issue date Mar 23, 1982
    • W-K-M Wellhead Systems, Inc.
    • Clifford M. Peters
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Relay valve for fluid actuators
    • Patent number 4,263,938
    • Issue date Apr 28, 1981
    • W-K-M Wellhead Systems, Inc.
    • Clifford M. Peters
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Relay valve for fluid actuators
    • Patent number 4,256,141
    • Issue date Mar 17, 1981
    • W-K-M Wellhead Systems, Inc.
    • Clifford M. Peters
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Manually reset control valve for a fluid actuator
    • Patent number 4,252,145
    • Issue date Feb 24, 1981
    • W-K-M Wellhead Systems, Inc.
    • Clifford M. Peters
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pull type relay valve with automatic lockout
    • Patent number 4,239,058
    • Issue date Dec 16, 1980
    • ACF Industries, Incorporated
    • Clifford M. Peters
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pilot valve mechanism for high or low pressure cut-off control
    • Patent number 4,217,934
    • Issue date Aug 19, 1980
    • W-K-M Wellhead Systems, Inc.
    • Clifford M. Peters
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pressure responsive safety system for fluid lines
    • Patent number 4,215,746
    • Issue date Aug 5, 1980
    • W-K-M Wellhead Systems, Inc.
    • Donald F. Hallden
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Seal means for high pressure control valves
    • Patent number 4,209,040
    • Issue date Jun 24, 1980
    • W-K-M Wellhead Systems, Inc.
    • Clifford M. Peters
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Control valve for fluid actuator
    • Patent number 4,207,924
    • Issue date Jun 17, 1980
    • W-K-M Wellhead Systems, Inc.
    • Clifford M. Peters
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Push-type control valve for fluid actuator
    • Patent number 4,196,750
    • Issue date Apr 8, 1980
    • W-K-M Wellhead Systems, Inc.
    • Clifford M. Peters
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Control valve having integral visual indicator for fluid safety sys...
    • Patent number 4,194,529
    • Issue date Mar 25, 1980
    • W-K-M Wellhead Systems, Inc.
    • Melvin J. Hargraves
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Control valve having integral visual indicator for fluid safety sys...
    • Patent number 4,137,942
    • Issue date Feb 6, 1979
    • W-K-M Wellhead Systems, Inc.
    • Melvin J. Hargraves
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combination high-low pilot valve
    • Patent number 4,084,613
    • Issue date Apr 18, 1978
    • W-K-M Wellhead Systems, Inc.
    • Clifford M. Peters
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Quick bleed exhaust valve
    • Patent number 4,041,970
    • Issue date Aug 16, 1977
    • ACF Industries, Incorporated
    • Clifford M. Peters
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Velocity flow control valve for fluid line
    • Patent number 4,010,770
    • Issue date Mar 8, 1977
    • W-K-M Wellhead Systems, Inc.
    • Clifford M. Peters
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Test valve for fluid actuated pilot valve
    • Patent number 3,987,817
    • Issue date Oct 26, 1976
    • ACF Industries, Incorporated
    • Clifford M. Peters
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Control valve for fluid actuator
    • Patent number 3,943,974
    • Issue date Mar 16, 1976
    • ACF Industries, Incorporated
    • Lawrence K. Connelly
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...