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2 203 445

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Application

2001121099/06, 2001-07-26

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Start date

2001-07-26

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Actual filing date

2001-07-26

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Published

2003-04-27

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Inventor

Sokolovskij V.I.Ivanov V.A.Novoselov V.V.

(73)

Holder

Sokolovskij Veniamin IzrailevichIvanov Vadim AndreevichNovoselov Vladimir Vasil'Evich

PIPELINE REPAIR METHOD Russian patent published in 2003 - IPC

Abstract RU 2203445 C2

FIELD: construction engineering. SUBSTANCE: method used for repairing pipelines crossing water-ways involves following procedures. New pipe is inserted in worn-out pipeline, space between pipes is sealed and filled with water. New pipe is displaced afloat by means of piston while pumping air (gas) into piston space inside worn-out pipeline. Such procedures reduce resistive forces when introducing new pipe into worn-out pipeline. EFFECT: reduced repair charges. 2 dwg

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RU 2 203 445 C2

Authors

Sokolovskij V.I.

Ivanov V.A.

Novoselov V.V.

Dates

2003-04-27—Published

2001-07-26—Filed

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