METHOD AND DEVICE FOR PIPELINE REPAIRS Russian patent published in 2002 - IPC

Abstract RU 2178858 C2

FIELD: construction engineering; pipeline construction and repairs. SUBSTANCE: pipeline is covered by simultaneous displacement of two sleeves and adhesive over it; sleeves are brought in and out on both ends of pipeline by means of their turning inside out. Device has two sleeves whose ends are fastened over pipeline perimeter on both ends; other ends of sleeves are joined to traction mechanism; cavities formed by bent parts of sleeve communicate with surrounding atmosphere. Anchor ring may be installed between sleeves. EFFECT: enhanced reliability of pipeline. 9 cl, 2 dwg

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RU 2 178 858 C2

Authors

Shishkin V.V.

Li S.A.

Dates

2002-01-27Published

1999-11-05Filed