Reversible lining tube for repairing an existing pipeline

Details Reversible lining tube for repairing an existing pipeline Reversible lining tube for repairing an existing pipeline

1997-01-29

1999-05-04

Bagnell, David J.

Hydraulic and earth engineering

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

With protection or indication of pipe or trench

E03B 709

Patent

active

058996362

ABSTRACT:
A reversible lining tube for repairing an existing pipeline is reversible into the existing pipeline so that its initial inner surface becomes its outer surface which adheres to the internal surface of the pipeline. In detail, the reversible lining tube includes an elastomer layer and a flock layer, prior to reversal into the existing pipeline the elastomer layer is an outer layer and the flock layer is an inner layer, upon reversal into the existing pipeline the elastomer layer becomes an inner layer and the flock layer becomes an outer layer which adheres to the internal surface of the existing pipeline.

REFERENCES:
patent: 4334943 (1982-06-01), Zenbayashi et al.
patent: 4350548 (1982-09-01), Zenbayashi et al.
patent: 4368091 (1983-01-01), Ontsuga et al.
patent: 4427480 (1984-01-01), Kamuro et al.
patent: 4600615 (1986-07-01), Hyodo et al.
patent: 4684556 (1987-08-01), Ohtsuga et al.
Toray Web Site, p. 3, Apr. 1996.

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