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2 249 150

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IPC

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Application

2003126970/06, 2003-09-03

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Start date

2003-09-03

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Actual filing date

2003-09-03

(45)

Published

2005-03-27

(72)

Inventor

Buldakov A.A.Mikhajljuk S.V.Novikov P.A.Osokin M.Ju.Perederij V.I.Semenjuga V.V.Tokarev A.N.Usoshin V.A.Jakovlev V.A.

(73)

Holder

Zao

METHOD OF MANUFACTURE OF PIPE CONNECTION UNIT Russian patent published in 2005 - IPC

Abstract RU 2249150 C1

FIELD: erection of transport pipe lines; manufacture of pipe connection units from composite materials.

SUBSTANCE: proposed method includes manufacture of two metal tips with alternating convexities and recesses on their outer surfaces and placing them in winding unit. Duplicate sealing layers made from elastomer, anti-adhesive gasket and separating layer are laid in succession on each of them; they do not reach outer edges of duplicate layers and main sealing layer. Circular elastic cords are laid of anti-adhesive gasket and ends of anti-adhesive gasket are bent around circular cords; separating layer embraces circular cords together with ends of gasket. Then, fittings impregnated with binder are wound on stack and binder is hardened at heating.

EFFECT: enhanced reliability of hermetic joint.

2 cl, 12 dwg

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RU 2 249 150 C1

Authors

Buldakov A.A.

Mikhajljuk S.V.

Novikov P.A.

Osokin M.Ju.

Perederij V.I.

Semenjuga V.V.

Tokarev A.N.

Usoshin V.A.

Jakovlev V.A.

Dates

2005-03-27—Published

2003-09-03—Filed