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2 097 646

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IPC

(21) (22)

Application

95102302/06, 1995-02-17

(22)

Actual filing date

1995-02-17

(45)

Published

1997-11-27

(72)

Inventor

Golovin S.V.Goncharov N.G.Lopatin E.V.Mazel' A.G.Romanova I.A.Khomenko V.I.Gobarev L.A.

(73)

Holder

Tovarishchestvo S Ogranichennoj Otvetstvennost'Ju

METHOD OF PREVENTION OF DEVELOPMENT OF FLAWS IN PIPE LINE WALLS Russian patent published in 1997 - IPC

Abstract RU 2097646 C1

FIELD: mechanical. SUBSTANCE: detachable coupling consisting of two halves is mounted on pipe line at preliminary filling of flaw with hardening noncorrodible polymer material, after which coupling halves are welded together. Invention gives mathematical dependence of pressure drop versus geometry of pipe and stresses in it. EFFECT: enhanced efficiency. 2 cl, 3 dwg

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RU 2 097 646 C1

Authors

Golovin S.V.

Goncharov N.G.

Lopatin E.V.

Mazel' A.G.

Romanova I.A.

Khomenko V.I.

Gobarev L.A.

Dates

1997-11-27—Published

1995-02-17—Filed