TUBULAR ANCHOR Russian patent published in 1997 - IPC

Abstract RU 2072049 C1

FIELD: mining. SUBSTANCE: device has a tube with lengthwise fold made on the section with is shorter than its length. Tube ends are capped. Cap diameters are larger than tube internal diameter. Radial hole and bearing ledge are provided at the tail tube portion. The ledge and the tube are one part. The fold is straightened under the pressure and the tube is fastened in mine working. EFFECT: high reliability. 7 cl, 8 dwg

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RU 2 072 049 C1

Authors

Tyrtov S.A.

Bronfen I.I.

Kazakevich I.I.

Logashkin S.A.

Kazakevich D.I.

Moreva A.G.

Dates

1997-01-20—Published

1993-12-29—Filed