Patent ID: 6652690
Filing Date: 2003-11-25
Classification: B29C,F16L

Abstract:
The method of lining a passage having an inner wall in the ground utilizing a bladder having an intake hose and a resin infused patch situated about said bladder within said passage, comprising the steps of:a. providing a container having an exothermic material situated therein, the container having an exit port communicating with the intake hose of the bladder; b. providing a flow of fluid through said container, so as to dissolve said exothermic material with said fluid, so as to provide an exothermically heated solution; c. directing said exothermically heated solution through said intake hose and into the bladder, so as to fill the bladder with said exothermically heated solution, providing a filled bladder; d. allowing said filled bladder to force said resin infused patch to said inner wall of said passage; while e. allowing said exothermically heated solution to heat and thermoset said resin.