Pipe plug apparatus and method for its use

Details Pipe plug apparatus and method for its use Pipe plug apparatus and method for its use

1985-10-31

1987-11-24

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Production of continuous or running length

264560, 2642094, 264237, 264348, 425 71, 425325, 4253261, 425380, 4253871, 425392, 425467, B29C 4790

Patent

active

047088419

ABSTRACT:
A pipe plug apparatus and method for its use are described herein. A pipe plug is provided which includes a first portion, and second and third portions which radially extend from the exterior surface of the first portion so as to surround the first portion. When the plug is positioned in a pipe, liquid is introduced into the space as defined between the second and third portions, and as defined between the pipe interior surface and first portion exterior surface, so as to at least partially fill the space with the liquid.

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Company brochure of the Hoechst Corporation, Frankfurt, pp. 8 and 9.

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