METHOD OF MOUNTING LONG PIPE Russian patent published in 2005 - IPC

Abstract RU 2244193 C1

FIELD: pipe line transport; major repair of pipe lines.

SUBSTANCE: proposed method includes introducing the front end of pipe into damage pipe and forming hermetic cavity in inter-pipe space; then, pressure air (gas) is charged into hermetic cavity for motion of new pipe inside damaged pipe, after which piston is fitted at end of new pipe and detachable flange is connected to rear end of damaged pipe; motion of new pipe is effected by periodic charging of air into hermetic cavities; each hermetic cavity is bounded by piston and seal.

EFFECT: reduction of tractive force.

5 dwg

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RU 2 244 193 C1

Authors

Sokolovskij V.I.

Dates

2005-01-10—Published

2003-06-30—Filed