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2 079 770

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C1

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IPC

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Application

94036998/06, 1994-10-03

(22)

Actual filing date

1994-10-03

(45)

Published

1997-05-20

(72)

Inventor

Mikhlin A.L.Rubtsov N.I.Kozlov V.A.Krestovozdvizhenskij V.V.Shubin O.Sh.

(73)

Holder

Aktsionernoe Obshchestvo Zakrytogo TipaNauchnyj Tekhniko-Juridicheskij Tsentr

METHOD FOR RECOVERING METAL UNDERGROUND GASLINE TO BE SERVICEABLE Russian patent published in 1997 - IPC

Abstract RU 2079770 C1

FIELD: erecting gaslines. SUBSTANCE: method for recovering metal underground gasline includes cleaning its inner surface from rust, deposits, burrs, and placing inside it polyethylene pipe by drawing. Support layers of such a height to provide that the existing and new pipes be coaxial, are attached to lower surface of the pipe before drawing. Hardening composition is used to fill the annular space between the new and existing pipes. EFFECT: recovered serviceability of gas pipeline. 2 cl, 3 dwg

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RU 2 079 770 C1

Authors

Mikhlin A.L.

Rubtsov N.I.

Kozlov V.A.

Krestovozdvizhenskij V.V.

Shubin O.Sh.

Dates

1997-05-20—Published

1994-10-03—Filed

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