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2 107 208

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IPC

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Application

94044764/06, 1994-12-20

(22)

Actual filing date

1994-12-20

(45)

Published

1998-03-20

(72)

Inventor

Ogorodnikov V.A.Grigor'Ev V.A.Mishukov V.V.

(73)

Holder

Vserossijskij Nauchno-Issledovatel'Skij Institut Ehksperimental'Noj FizikiMinisterstvo Rossijskoj Federatsii Po Atomnoj Ehnergii

METHOD OF SHUTTING-OFF PIPELINE Russian patent published in 1998 - IPC

Abstract RU 2107208 C1

FIELD: oil-and-gas industry and nuclear power. SUBSTANCE: metal ring is preliminarily fitted on outer surface of pipeline to be shut off. Sizes of cross section of ring are no less than thickness of pipeline wall, and strength and plastic properties of material of ring are no worse than those of material of pipeline. Then pipeline with ring is crimped by two metal plates fitted on opposite sides of pipeline at spaced relation to it and at acute angle relative to each other and to axis of pipeline. Plates are simultaneously accelerated towards each other by explosion of explosive charge located on outer side of each plate. EFFECT: enhanced reliability. 2 dwg

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RU 2 107 208 C1

Authors

Ogorodnikov V.A.

Grigor'Ev V.A.

Mishukov V.V.

Dates

1998-03-20—Published

1994-12-20—Filed

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