TREA

Hans M. van der Wiel

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  • Upland, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Integral bleed system for valve
    • Patent number 5,392,813
    • Issue date Feb 28, 1995
    • Johnston Pump/General Valve Inc.
    • Gordon M. Smith
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Apparatus for sealing a fluid carrying device
    • Patent number 5,372,352
    • Issue date Dec 13, 1994
    • Johnston Pump/General Valve, Inc.
    • Gordon M. Smith
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Self supporting plug for a double block and bleed plug valve
    • Patent number 5,011,115
    • Issue date Apr 30, 1991
    • Johnston Pump/General Valve Inc.
    • Gordon M. Smith
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Plug valve
    • Patent number 4,623,119
    • Issue date Nov 18, 1986
    • Johnston Pump/General Valve, Inc.
    • Hans M. van der Wiel
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...