DEVICE FOR SHUTTING-OFF PIPE LINE Russian patent published in 1998 - IPC

Abstract RU 2121620 C1

FIELD: shutting-off inner cavity of pipe line at open end. SUBSTANCE: device has stop and clay plug; stop is made in form of hollow cylinder provided with fixed disk mounted in front portion of cylinder and movable disk mounted for axial displacement along hollow cylinder. Fixed disk has holes for passing rods. Rods are secured. EFFECT: enhanced tightness. 1 dwg

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RU 2 121 620 C1

Authors

Akhmetov R.M.

Gur'Janov V.Ju.

Gumerov R.S.

Sukhanov V.D.

Dates

1998-11-10—Published

1996-04-12—Filed