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2 222 746

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IPC

(21) (22)

Application

2001125995/06, 2001-09-25

(24)

Start date

2001-09-25

(22)

Actual filing date

2001-09-25

(45)

Published

2004-01-27

(72)

Inventor

Kolomeev Valentin NikolaevichRozgonjuk Vasilij Vasil'EvichBut Viktor StepanovichDrogomiretskij Mikhail NikolaevichPed'Ko Boris IvanovichShcherbak Aleksandr ViktorovichVasil'Ev Jurij Stepanovich

(73)

Holder

Dochernjaja Kompanija Dk

METHOD OF MOUNTING SLEEVE ONTO DEFECTIVE PART OF PIPELINE Russian patent published in 2004 - IPC

Abstract RU 2222746 C2

FIELD: construction engineering. SUBSTANCE: invention is designed for use in repair of pipelines of different application. According to proposed method, section of pipeline to be repaired is cleaned, at least 4 coils of wire are turned onto cleaned section and connected by tack welds. Layer of sealant is applied to cleaned section and wire members and split sleeve is fitted on wire members. Wire is annealed prior to winding onto pipeline. Diameter of wire is chosen depending on viscosity of sealant. Sealant is fed between sleeve and pipeline. EFFECT: improved reliability of high-pressure pipelines. 5 cl, 3 tbl, 1 dwg

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RU 2 222 746 C2

Authors

Kolomeev Valentin Nikolaevich

Rozgonjuk Vasilij Vasil'Evich

But Viktor Stepanovich

Drogomiretskij Mikhail Nikolaevich

Ped'Ko Boris Ivanovich

Shcherbak Aleksandr Viktorovich

Vasil'Ev Jurij Stepanovich

Dates

2004-01-27—Published

2001-09-25—Filed