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2 111 404

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IPC

(21) (22)

Application

95118241/06, 1995-10-26

(22)

Actual filing date

1995-10-26

(45)

Published

1998-05-20

(72)

Inventor

Babushkin A.E.Buldakov A.A.Dudorov N.B.Mikhajljuk S.V.Mozerov B.G.Pokataev K.A.Tokarev A.N.Shilov A.A.Semenjuga V.V.Usoshin V.A.Sedykh A.D.Tychkin I.A.Jakovlev V.A.Fomin B.Ja.Karavashkin V.G.Dunchenko K.E.

(73)

Holder

Zakrytoe Aktsionernoe ObshchestvoDochernee Aktsionernoe Obshchestvo Otkrytogo Tipa

METHOD OF MANUFACTURE OF UNIT FOR CONNECTING METAL PIPES Russian patent published in 1998 - IPC

Abstract RU 2111404 C1

FIELD: manufacture of electrically insulating, compensating and other inserts from composite materials for protection of pipe lines against corrosion, vibration for oil and gas lines, heating systems, aggressive media transport pipe lines, etc. SUBSTANCE: method includes manufacture of two metal tips with beads on their outer surfaces, fitting these tips on mandrel coaxially and at spaced relation to reach other and laying beads on them for embracing the other and lateral surfaces which are opposite to adjacent ends of tips of longitudinal and/or spiral layers of reinforcing dielectric, for example, glass fibres impregnated with polymer binder. Longitudinal and/or spiral layers are laid at varying tension increasing with distance between outer surfaces of tips and/or angle of reinforcing decreasing in the same direction. EFFECT: enhanced efficiency. 2 dwg

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RU 2 111 404 C1

Authors

Babushkin A.E.

Buldakov A.A.

Dudorov N.B.

Mikhajljuk S.V.

Mozerov B.G.

Pokataev K.A.

Tokarev A.N.

Shilov A.A.

Semenjuga V.V.

Usoshin V.A.

Sedykh A.D.

Tychkin I.A.

Jakovlev V.A.

Fomin B.Ja.

Karavashkin V.G.

Dunchenko K.E.

Dates

1998-05-20—Published

1995-10-26—Filed