TREA

David J. Smith

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  • Topfield, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Stretch film winder
    • Patent number 8,430,351
    • Issue date Apr 30, 2013
    • Gloucester Engineering Co., Inc.
    • David J. Smith
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Cast film cooling device
    • Patent number 6,619,941
    • Issue date Sep 16, 2003
    • Battenfeld Gloucester Engineering Co., Inc.
    • David J. Smith
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Air ring for controlling blown film thickness
    • Patent number 5,288,219
    • Issue date Feb 22, 1994
    • Battenfeld Gloucester Engineering Co., Inc.
    • David J. Smith
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    STRETCH FILM WINDER
    • Publication number 20100294876
    • Publication date Nov 25, 2010
    • Gloucester Engineering Co., Inc.
    • David J. Smith
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    Process for reducing surface aberrations
    • Publication number 20070164467
    • Publication date Jul 19, 2007
    • David J. Smith
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    Process for reducing surface aberrations
    • Publication number 20050037220
    • Publication date Feb 17, 2005
    • Battenfeld Gloucester Engineering Co., Inc.
    • David J. Smith
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    Cast film cooling method
    • Publication number 20040051204
    • Publication date Mar 18, 2004
    • Battenfeld Gloucester Engineering Co., Inc.
    • David J. Smith
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    Pre-stretched film having improved edges
    • Publication number 20030189118
    • Publication date Oct 9, 2003
    • David J. Smith
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL