Patent ID: 7753081

Claim:
A method of making a cured-in-place pipe repair to a pipe in fluid communication with an access pipe and having an area in need of repair, the method comprising: providing an elongated bladder tube having a first bladder tube end and a second bladder tube end; providing an elongated liner tube having a first liner tube end and a second liner tube end; positioning the first liner end tube end within the bladder tube such that the liner tube is spaced apart from the first end of the bladder tube by a predetermined distance; securing the first liner tube end of the liner tube within the bladder tube using an adhesive or solvent; impregnating the liner tube with a material capable of curing and hardening; inverting the bladder tube through at least a portion of the access pipe to an inverted position with the liner tube pressed against the pipe adjacent the area in need of repair in the pipe; wherein the predetermined distance enables the liner tube to line the area in need of repair in the pipe without the liner tube blocking flow through the pipe or the access pipe; permitting the uncured resin to cure and harden; and removing the bladder tube to leave the liner tube cured in place at the area in need of repair within the pipe.