Patent ID: 8272406

Claim:
A method for rehabilitating a tubular conduit having an inner conduit space and at least one service connection tied into the tubular conduit, a portion of the at least one service connection protruding into the inner conduit space, the method comprising the steps of: providing a liner for covering the inner surface of the tubular conduit, the liner being made of a flexible material capable of being impregnated with a first curable adhesive resin and having a film made of a material impermeable to liquid bonded onto the inner surface of the liner; providing a flexible sealing member made of a second curable adhesive resin; providing access to the inner conduit space of the tubular conduit; snugly fitting the sealing member onto the protruding portion of the at least one service connection in surrounding relation therewith; impregnating the liner with the first curable adhesive resin; inserting the liner into the tubular conduit; shaping the liner to conform to the inner surface of the tubular conduit, a portion of the liner bearing against the protruding portion of the at least one service connection; and curing the first curable adhesive resin in the liner and the second curable adhesive resin in the sealing member so as to: (a) initially cause the second curable adhesive resin to deform and to at least partially occupy gaps between the protruding portion of the at least one service connection and the liner and, (b) subsequently cause the first curable adhesive resin and the second curable resin to harden; the liner and the sealing member together forming a unitary structure and a seal about the protruding portion of the at least one service connection once the first curable resin and the second curable resin have hardened.