Device and method for repairing pipe

CAFC
  • US 8,667,991 B2
  • Filed: 06/16/2011
  • Issued: 03/11/2014
  • Est. Priority Date: 08/27/2007
  • Status: Active Grant
First Claim
Patent Images

1. An apparatus for repairing a main pipe line and a lateral pipe line connected thereto and in communication therewith to form a pipe joint, comprising:

  • a bladder assembly comprising a main bladder tube and a lateral bladder tube extending from the main bladder tube;

    a liner assembly comprising a main liner member at least partially surrounding the main bladder tube and a lateral liner tube extending from the main liner member;

    the lateral liner tube and lateral bladder tube extendable to a position within the lateral pipe line with the lateral liner tube between the lateral pipe line and the lateral bladder tube; and

    a gasket comprising a hydrophilic rubber, the gasket positioned at least partially surrounding the main liner member and the lateral liner member between the main liner member and the pipe joint, the gasket capable of swelling in reaction to contact with a liquid.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×