Pipe lining method

Details Pipe lining method Pipe lining method

1998-02-03

2000-08-15

Yao, Sam Chaun

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156267, 156287, 156294, 138 97, 138 98, 264269, B29C 6334

Patent

active

06103052&

ABSTRACT:
A pipe lining method is provided for accurately cutting or punching out a pipe liner bag after being lined on an inner wall of a pipe with a good operability while preventing an operation environment from being contaminated. A fluid pressure is applied to act on a pipe liner bag introduced in a pipe to press the pipe liner bag onto the inner wall of the pipe. A thickness reducing member is brought into contact with the outer surface of the pipe liner bag to partially reduce the thickness of the pipe liner bag. A predetermined pipe lining operation with the above state maintained. Then, an external force is applied to a thickness reduced portion of the pipe liner bag to break the portion.

REFERENCES:
patent: 2789934 (1957-04-01), Busbach
patent: 3950461 (1976-04-01), Levens
patent: 5778937 (1998-07-01), Sundermann

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