Patents by Inventor M. Paul Burnside

M. Paul Burnside has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for forming carton blanks with hemmed edges
    Patent number: 5236408
    Abstract: A paper box folding and sealing machine for forming a hemmed edge. A skiving station removes a portion of a carton blank material at the area to be hemmed. A hemming station folds the skived portion onto the blank, irons it and then opens the hem to lie in a predetermined plane that intersects the plane of the blank. Superheated air directed in a laminar-like air flow, activates a thermoplastic coating adjacent the skived portion of the area to be hemmed. Folding fingers, tack rollers and presser rollers then fold the skived portion onto the activated thermoplastic coating to form a hem that is sealed against the adjacent portion of the blank.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: August 17, 1993
    Assignee: International Paper Box Machine Company, Inc.
    Inventors: Hugh A. McAdam, III, M. Paul Burnside, Jeffrey Lindberg