Pipe blocking technique

Details Pipe blocking technique Pipe blocking technique

1997-08-15

1999-03-09

Ferensic, Denise L.

Pipes and tubular conduits

With closures and plugs

Inflatable

138 89, F16L 55128

Patent

active

058787844

ABSTRACT:
A method for blocking the bore of a pipe comprising moving an inflatable bag along the bore of the pipe from an access point in the pipe to a point where the bore is to be blocked, inflating the bag until it engages the internal wall of the pipe or main and causing the bag to maintain its inflated condition. Where an expandable foam is used.

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