TREA

James F. Donnelly

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  • Leicester, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Butterfly valve seat
    • Patent number 4,623,121
    • Issue date Nov 18, 1986
    • Jamesbury Corporation
    • James F. Donnelly
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Fire tested butterfly valve
    • Patent number 4,202,365
    • Issue date May 13, 1980
    • Jamesbury Corporation
    • Tadashi Aoki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Valve lock
    • Patent number 3,939,864
    • Issue date Feb 24, 1976
    • Jamesbury Corporation
    • James F. Donnelly
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...