Patents Assigned to Hall International, LLC
  • Patent number: 5980670
    Abstract: A method of forming a cuff on a section of tubular pipe which defines first and second ends and inner and outer surfaces. The method comprises the initial step of applying an outer layer of polymer material to a portion of the outer surface of the pipe such that a portion of the outer layer extends beyond and covers the first end of the pipe. Thereafter, an inner layer of polymer material is applied to a portion of the inner surface of the pipe. The inner layer is then blended into the outer layer so as to define a bull nose of the cuff which extends beyond the first end of the pipe.
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: November 9, 1999
    Assignee: Hall International, LLC
    Inventor: James R. Andre
  • Patent number: D670122
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: November 6, 2012
    Assignee: Hall International LLC
    Inventor: Susan Hall Childress