Patents Assigned to Triparte Ltd.
  • Attaching a plastic tube to a web of plastic
    Patent number: 4767478
    Abstract: A web of plastic is welded to the internal surface of a plastic tube. A method, apparatus and product are described.
    Type: Grant
    Filed: September 16, 1986
    Date of Patent: August 30, 1988
    Assignee: Triparte Ltd.
    Inventor: William C. Christine