Method of forming an end seal for a pipe liner

Details Method of forming an end seal for a pipe liner Method of forming an end seal for a pipe liner

1988-07-26

1990-02-20

Silbaugh, Jan H.

Metal working

Method of mechanical manufacture

Assembling or joining

138 97, 156287, 156294, 264 36, 264269, 264516, B23P 1100, B29C 6334

Patent

active

049014242

ABSTRACT:
In order to effectively seal the space between a preexisting pipe and a repair lining that has been inserted into the pipe and radially expanded in order to generally conform to the interior of the pipe, a form is inserted between the ends of the pipe and lining before the lining is radially expanded, the lining therefore conforms to the interior of the pipe along its length and to the interior of the form at its ends, the form is removed, a sealing ring is inserted into the space left by the form and is there sealingly compressed, and an element is inserted into that space axially outside the sealing ring in order to retain it in position and preferably to compress it axially of the pipe.

REFERENCES:
patent: 4009063 (1977-02-01), Wood
patent: 4064211 (1977-12-01), Wood
patent: 4529008 (1985-07-01), Appleton
patent: 4622196 (1986-11-01), Wood
patent: 4637754 (1987-01-01), Wood
patent: 4752511 (1988-06-01), Driver

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