TREA

Norman R. Westfall

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  • Rochester, NY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pin lock for tilt sash lock shoe
    • Patent number 5,572,828
    • Issue date Nov 12, 1996
    • Caldwell Manufacturing Company
    • Norman R. Westfall
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Hurricane window brace
    • Patent number 5,551,189
    • Issue date Sep 3, 1996
    • Caldwell Manufacturing Company
    • Norman R. Westfall
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Block and tackle window balance
    • Patent number 5,530,991
    • Issue date Jul 2, 1996
    • Caldwell Manufacturing Company
    • Richard S. deNormand
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Sash shoe system for curl spring window balance
    • Patent number 5,463,793
    • Issue date Nov 7, 1995
    • Caldwell Manufacturing Company
    • Norman R. Westfall
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Curl spring shoe based window balance system
    • Patent number 5,353,548
    • Issue date Oct 11, 1994
    • Caldwell Manufacturing Company
    • Norman R. Westfall
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Lock shoe system for heavy sash
    • Patent number 5,231,795
    • Issue date Aug 3, 1993
    • Caldwell Manufacturing Company
    • Norman R. Westfall
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Automatic friction shoe
    • Patent number 5,207,025
    • Issue date May 4, 1993
    • Caldwell Manufacturing Company
    • Norman R. Westfall
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Window jamb liner
    • Patent number 5,199,219
    • Issue date Apr 6, 1993
    • Caldwell Manufacturing Company
    • James A. Martini
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Tilt sash lock shoe system
    • Patent number 5,189,838
    • Issue date Mar 2, 1993
    • Caldwell Manufacturing Company
    • Norman R. Westfall
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Jamb liner slot cover
    • Patent number 5,159,794
    • Issue date Nov 3, 1992
    • Caldwell Manufacturing Company
    • John I. Habbersett
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Window sash balance with tension and torsion spring
    • Patent number 5,152,032
    • Issue date Oct 6, 1992
    • Caldwell Manufacturing Company
    • Donald D. Davis
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Balance system for laterally biased sash guides
    • Patent number 5,119,592
    • Issue date Jun 9, 1992
    • Caldwell Manufacturing Company
    • Norman R. Westfall
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Lift-off shoe system for tilt window
    • Patent number 4,941,285
    • Issue date Jul 17, 1990
    • Caldwell Manufacturing Company
    • Norman R. Westfall
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Audibly locking shoe system for take-out window
    • Patent number 4,885,871
    • Issue date Dec 12, 1989
    • Caldwell Manufacturing Company
    • Norman R. Westfall
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Window balance spring cover friction system
    • Patent number 4,837,976
    • Issue date Jun 13, 1989
    • Caldwell Manufacturing Company
    • Norman R. Westfall
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Window spring anchor
    • Patent number 4,811,455
    • Issue date Mar 14, 1989
    • Caldwell Manufacturing Company
    • Wilford G. Ost
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Cord guide system for sash balance
    • Patent number 4,800,680
    • Issue date Jan 31, 1989
    • Caldwell Manufacturing Company
    • Norman R. Westfall
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Lock shoe system for take-out window
    • Patent number 4,799,333
    • Issue date Jan 24, 1989
    • Caldwell Manufacturing Company
    • Norman R. Westfall
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Spring cover friction system for sash balance
    • Patent number 4,779,380
    • Issue date Oct 25, 1988
    • Caldwell Manufacturing Company
    • Norman R. Westfall
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Fluid resistor
    • Patent number 4,275,767
    • Issue date Jun 30, 1981
    • Sybron Corporation
    • Norman R. Westfall
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...