Patents Assigned to Folder-Gluer Technical Services Group, Inc.
  • Apparatus and method for forming a hemmed edge on carton blanks
    Patent number: 7137941
    Abstract: An apparatus and method for forming a hem on a 5th panel of a liquid carton blank comprising a skiving section, a stepped creaser section, a burner section, a vacuum hemmer section, and a sealer section. Carton blanks are fed into the skiver section and exit from the sealer section at a high rate of speed. The final folding step in the process is performed by a vacuum hemmer which comprises a belt with holes for pulling a vacuum to securely hold the carton blank during the second and final folding of the skived portion of the 5th panel.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: November 21, 2006
    Assignee: Folder-Gluer Technical Services Group, Inc.
    Inventors: Brian N. Gamache, Peter M. Siemiesz, Michael A. Sutcliffe, Terence Sharples