Patents Assigned to PCL Packaging Ltd.
  • Plastic bag handle aperture forming apparatus
    Patent number: 4636191
    Abstract: There is disclosed a bag making machine for producing bags from an elongate strip of plastic web material. The disclosure relates to various improvements in the bag making machine such as the apparatus for cutting the bag handle aperture. The apparatus includes at least one circular cutting blade having a plunger movable relative thereto within its cutting periphery. The plunger includes a web piercing member on its leading face which member positively holds the web material relative to the cutting blade and plunger.
    Type: Grant
    Filed: February 7, 1984
    Date of Patent: January 13, 1987
    Assignee: PCL Packaging Ltd
    Inventor: David C. Piggott
  • Coupon cutting machine
    Patent number: 4607556
    Abstract: An apparatus is described for cutting coupons from plastic webs. This apparatus includes a circular cutting blade movable into and out of engagement with a cutting surface. The blade and cutting surfaces are each supported so that they are self-aligning. The cutting surface comprises a series of discrete rotatable surfaces which are rotated about the axis of the cutting blade to effect the cut.
    Type: Grant
    Filed: February 19, 1985
    Date of Patent: August 26, 1986
    Assignee: PCL Packaging Ltd.
    Inventor: David C. Piggott