Branch pipe lining bag and pipe lining method

Details Branch pipe lining bag and pipe lining method Branch pipe lining bag and pipe lining method

1999-01-28

2000-09-26

Brinson, Patrick

Pipes and tubular conduits

Repairing

Patches

138 97, 4051501, 156287, 264269, F16L 5516

Patent

active

061231096

ABSTRACT:
A branch pipe lining bag wherein an annular protective member is previously fixed on a flange which is provided adjoined to an open end of a tubular bag. This tubular bag is soaked with a hardenable liquid resin and adapted to be everted under fluid pressure into a branch pipe. The protective member can be attached on the marginal periphery of the branch pipe opening to the main pipe simultaneously at the end of the branch pipe lining, irrespective of the inner diameter of the main pipe. Also, a pipe lining method wherein the annular protective member fixed on the flange is prepared previously and then the flange is connected to the part of the main pipe where the branch pipe opens. The main pipe lining bag can be bored without any damage irrespective of both the main pipe diameter and the branch pipe diameter or any connecting situations.

REFERENCES:
patent: 4434115 (1984-02-01), Chick
patent: 5329063 (1994-07-01), Endoh
patent: 5439033 (1995-08-01), Kamiyama et al.
patent: 5454401 (1995-10-01), Kamiyama et al.
patent: 5566719 (1996-10-01), Kamiyama et al.
patent: 5692543 (1997-12-01), Wood

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