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Application

5056887/29, 1992-07-28

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Actual filing date

1992-07-28

(45)

Published

1994-11-30

(72)

Inventor

Zagirov M.M.Takhautdinov Sh.F.Sitnikov A.N.Kalachev I.F.Starochkin A.A.Khajrullin R.N.Kudrjashov N.N.

(73)

Holder

Tatarskij Nauchno-Issledovatel'Skij I Proektnyj Institut Neftjanogo Mashinostroenija

METHOD OF CONNECTION OF METAL PIPES WITH INTERNAL THERMOPLASTIC COATING Russian patent published in 1994 - IPC

Abstract RU 2023930 C1

FIELD: pipe line engineering. SUBSTANCE: ends of coating are set out of the ends of a pipe. Pressing ring is positioned behind the zone of active heat affecting of welding. After setting the ring projecting part of the coating is beaded on it and then the ends of the coating are shaped. One end is made of a hollow and the other is made of answered projection. EFFECT: enhanced reliability. 4 cl, 1 dwg

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RU 2 023 930 C1

Authors

Zagirov M.M.

Takhautdinov Sh.F.

Sitnikov A.N.

Kalachev I.F.

Starochkin A.A.

Khajrullin R.N.

Kudrjashov N.N.

Dates

1994-11-30—Published

1992-07-28—Filed

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