Patents Assigned to Poly-Lina Limited
  • Patent number: 6254520
    Abstract: In the manufacture of bags with handles, an extruded plastics tube is extruded, folded inwardly by a first folding device (21) to form gusseted side portions (4) and flattened. A transverse heat seal is formed by a sealing device (22) and a cutting device (23) removes a central section of the tubing to form handle portions (10). The gusseted side portions (4) are folded in turn onto a medial tubing portion (3) by a second folding device (24) having arcuate folding ramps and a further transverse heat seal and a transverse perforation line are applied to the base of the bag.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: July 3, 2001
    Assignee: Poly-Lina Limited
    Inventor: David Michael Angless
  • Bag
    Patent number: D386672
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: November 25, 1997
    Assignee: Poly-Lina Limited
    Inventor: Garry Barlow