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

Claim 11:
12. A method of repairing a hollow conduit having an inside wall surface, said method comprising:
(a) taking a tubular liner having a first portion and a second portion and impregnating the tubular liner with a light-activated resin;
(b) taking an inversion apparatus having an opening;
(c) attaching the first portion of the tubular liner around the opening of the inversion apparatus;
(d) inverting an inversion portion of the tubular liner through the opening under pressure to create an inverted portion of the tubular liner inside the hollow conduit;
(e) securing a region of the tubular liner to ensure the pressure inside the inverted portion of the tubular liner is maintained;
(f) attaching the second portion of the tubular liner to a light curing activator;
(g) releasing the region defined in (e); and
(h) inverting a remainder of the tubular liner into the hollow conduit so that the light curing activator is pulled through the inverted portion of the tubular liner by the second portion of the tubular liner.