Patent ID: 7588055

Claim:
A method of making a cured-in-place pipe repair to a lateral 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; positioning the liner tube 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 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 within the access pipe and into the lateral pipe to an inverted position with the liner tube on the outside of the bladder tube adjacent the area in need of repair; wherein the predetermined distance enables the liner tube to invert with the bladder tube proximate the area in need of repair in the lateral pipe and with the liner tube not extending into the access pipe in the inverted position; 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 lateral sewer pipe.