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Francis V. Marchal

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  • Erie, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    High pressure flow valve with pressure assist valve seal
    • Patent number 5,386,965
    • Issue date Feb 7, 1995
    • Ber-Lo Manufacturing Company, Inc.
    • Francis V. Marchal
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    High pressure relief valve
    • Patent number 4,757,839
    • Issue date Jul 19, 1988
    • Francis V. Marchal
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    High pressure ball valve
    • Patent number 4,460,157
    • Issue date Jul 17, 1984
    • Skinner Engine Company
    • Francis V. Marchal
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...