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(19)

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2 177 104

(13)

(51)

IPC

(21) (22)

Application

98115004/06, 1997-01-13

(24)

Start date

1997-01-13

(22)

Actual filing date

1997-01-13

(45)

Published

2001-12-20

(72)

Inventor

Ogren LennartMol'She BuLund ArneLeo KharriDikinson Alan DzhonJarvenkjulja JuriJormakka Veli-Pekka

(73)

Holder

Juponor B.V.

METHOD FOR LINING UNDERGROUND PIPELINES Russian patent published in 2001 - IPC

Abstract RU 2177104 C2

FIELD: construction engineering; repair of pipelines in particular sewage ones. SUBSTANCE: folded lining pipe is inserted into pipeline, unfolded in the latter, and pressed to pipeline under action of high pressure. Lining pipe is built up of many layers made of meltable polymer; they are alternating according to their transparency and fused in heating. EFFECT: improved reliability of pipeline. 16 cl, 5 dwg

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RU 2 177 104 C2

Authors

Ogren Lennart

Mol'She Bu

Lund Arne

Leo Kharri

Dikinson Alan Dzhon

Jarvenkjulja Juri

Jormakka Veli-Pekka

Dates

2001-12-20—Published

1997-01-13—Filed