Protective system for underground pipes

Details Protective system for underground pipes Protective system for underground pipes

1982-09-13

1984-09-04

Corbin, David H.

Hydraulic and earth engineering

Subterranean or submarine pipe or cable laying, retrieving,...

With protection or indication of pipe or trench

138DIG6, 405184, F16L 102, F16L 5812

Patent

active

044694695

ABSTRACT:
A method of protecting underground pipe from corrosion in a region in which it extends through a casing and is subject to the deleterious action of water accumulated in the casing. The ends of the casing are sealed to provide a closed chamber around the pipe. A treatment substance capable of mixing with the water and reducing or neutralizing its deleterious effect is introduced to the chamber. Thereafter a corrosion-resistant compound is pumped into the chamber to substantially fill the chamber with the compound and displace all or much of the water from the chamber.

REFERENCES:
patent: 1792855 (1931-02-01), McRae
patent: 2007969 (1935-07-01), Grodsky
patent: 3582533 (1971-06-01), Albright et al.
patent: 3655564 (1972-04-01), Barrington
patent: 3774403 (1973-11-01), Cushing
patent: 4171463 (1979-10-01), Watkins

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