Patents Assigned to Infrastructure Repair Systems, Inc.
  • Patent number: 6701966
    Abstract: An improved apparatus for repairing a pipeline by the insertion of a resin-impregnated tubular liner is disclosed wherein the improvement resides in an end cap that is adhesively attached to one end of the liner, the end cap having a pull tab formed thereon and a rope attached thereto. Once the liner has been inverted into the pipeline being repaired and the resin-impregnated tubular liner has been disposed into intimate contact with the interior surface of the pipeline and allowed to cure, the end cap is easily stripped from the liner by pulling on the rope.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: March 9, 2004
    Assignee: Infrastructure Repair Systems, Inc.
    Inventor: William G. Higman