Patent ID: 6619886
Filing Date: 2003-09-16
Classification: B29C,B29L,F16L

Abstract:
A method of installing a formed-in-situ repair in a pipe or conduit comprising:a. locating a sleeve of soft reinforcement material impregnated with a settable resin within a tube of soft, impervious sheet material; b. everting said tube into said pipe such that said sleeve is carried into a desired zone and brought into intimate contact with its inner surface of said pipe; c. guiding a point of eversion of said tube through directional changes in said pipe with guiding means; d. maintaining the inflation of said everted tube while passing a heated fluid medium through its interior to accelerate curing of said settable resin; and, when said settable resin is cured, de-everting said tube with withdrawal means and withdrawing said tube from said pipe, leaving said sleeve of reinforcement material in place within said pipe.