TREA

David P. Passerell

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  • Geneva, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Heat trap
    • Patent number 7,270,087
    • Issue date Sep 18, 2007
    • Bradford-White Corporation
    • David P. Passerell
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Reinforced polymer valve
    • Patent number 5,149,054
    • Issue date Sep 22, 1992
    • Perfection Corporation
    • David P. Passerell
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Angle valve
    • Patent number 4,750,707
    • Issue date Jun 14, 1988
    • Perfection Corporation
    • Ronald L. Johncox
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Coupling apparatus
    • Patent number 4,712,813
    • Issue date Dec 15, 1987
    • Perfection Corporation
    • David P. Passerell
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Stab-type coupling
    • Patent number 4,628,965
    • Issue date Dec 16, 1986
    • Perfection Corporation
    • David P. Passerell
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    No-hole insertion joint
    • Patent number 4,487,432
    • Issue date Dec 11, 1984
    • Perfection Corporation
    • David P. Passerell
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Angle cock valve
    • Patent number 4,418,888
    • Issue date Dec 6, 1983
    • Perfection Corporation
    • Irvin D. Jacobson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Stab-type coupling and method
    • Patent number 4,282,175
    • Issue date Aug 4, 1981
    • Perfection Corporation
    • Frank R. Volgstadt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Stab-type coupling
    • Patent number 4,229,025
    • Issue date Oct 21, 1980
    • Perfection Corporation
    • Frank R. Volgstadt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Shutoff valve
    • Patent number 4,216,793
    • Issue date Aug 12, 1980
    • Perfection Corporation
    • Frank R. Volgstadt
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pipe fitting having a non-metallic sealing member
    • Patent number 4,083,583
    • Issue date Apr 11, 1978
    • Perfection Corporation
    • Frank R. Volgstadt
    • F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

  • Information Patent Application

    HEAT TRAP
    • Publication number 20060054110
    • Publication date Mar 16, 2006
    • Allpass Corporation
    • David P. Passerell
    • F24 - HEATING RANGES VENTILATING