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Peter J. Arnoldt

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  • Clairton, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for connecting the ends of a pair of oval duct sections
    • Patent number 5,135,270
    • Issue date Aug 4, 1992
    • Ductmate Industries, Inc.
    • Peter J. Arnoldt
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Apparatus for connecting the ends of a pair of oval duct sections
    • Patent number 5,129,690
    • Issue date Jul 14, 1992
    • Ductmate Industries, Inc.
    • Manfred Meinig
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Method for connecting the ends of a pair of oval duct sections
    • Patent number 5,103,549
    • Issue date Apr 14, 1992
    • Ductmate Industries, Inc.
    • Manfred Meinig
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Flange type duct connector
    • Patent number 5,054,823
    • Issue date Oct 8, 1991
    • Ductmate Industries, Inc.
    • Peter J. Arnoldt
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Duct connector
    • Patent number 5,015,018
    • Issue date May 14, 1991
    • Ductmate Industries, Inc.
    • Peter J. Arnoldt
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Duct connector for a circular duct
    • Patent number 4,881,762
    • Issue date Nov 21, 1989
    • Ductmate Industries, Inc.
    • Peter J. Arnoldt
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Circular duct connector
    • Patent number 4,867,490
    • Issue date Sep 19, 1989
    • Ductmate Industries, Inc.
    • Peter J. Arnoldt
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Duct joint frame
    • Patent number 4,566,724
    • Issue date Jan 28, 1986
    • Ductmate Industries, Inc.
    • Peter J. Arnoldt
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Duct joint assembly
    • Patent number 4,509,778
    • Issue date Apr 9, 1985
    • Ductmate Industries
    • Peter J. Arnoldt
    • F24 - HEATING RANGES VENTILATING