ELASTOFLEXIBLE TAPE SPIRAL MADE FROM COMPOSITE MATERIALS (VERSIONS) Russian patent published in 2001 - IPC

Abstract RU 2162562 C1

FIELD: construction engineering; repair of main pipe lines. SUBSTANCE: elastoflexible tape spiral made from composite materials is used for protection of pipe lines in case of cracks and corrosion defects. Spiral consists of continuous turns. Multilayer tape consists of two to ten layers; each layer includes two systems of woven warp and weft fibers. Warp fibers are oriented spirally. Volume ratio of fibers and polymer binder ranges from 1: 0.37 to 1: 0.57 and volume ratio of warp and weft ranges from 1:1 to 3:1. EFFECT: enhanced reliability. 10 cl, 52 dwg

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RU 2 162 562 C1

Authors

Egorenkov I.A.

Ryzhikov V.V.

Krishnev L.M.

Dates

2001-01-27—Published

1999-06-30—Filed