Patent ID: 11953139
Assignee: PERMA-LINER INDUSTRIES, LLC
Field: Other special machines (Mechanical engineering)
Classification: CPC F  B  G | IPC B  F

Claim 14:
15. A method of repairing a hollow conduit having an inside wall surface, said method comprising:
taking a tubular liner and impregnating the tubular liner with a light-activated resin;
taking an inversion bladder having a first portion and a second portion;
inverting the tubular liner under pressure to an inverted position inside the hollow conduit;
inverting the first portion of the inversion bladder under pressure to an inverted position inside the inverted tubular liner;
attaching a light curing activator to the second portion of the inversion bladder;
inverting a remainder of the inversion bladder into the inverted tubular liner; and
powering up the light curing activator to help initiate curing of the light-activated resin.