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Jerry D. MacAfee

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  • Northboro, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Butterfly valve
    • Patent number 4,331,319
    • Issue date May 25, 1982
    • Jamesbury Corp.
    • Anthony C. Summers
    • 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 seat insert
    • Patent number 4,114,856
    • Issue date Sep 19, 1978
    • Jamesbury Corp.
    • Jerry D. MacAfee
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...