ANCHOR Russian patent published in 1997 - IPC

Abstract RU 2072048 C1

FIELD: mining. SUBSTANCE: anchor tubular member has axial lengthwise fold. One end is sealed with a cap and end welded joint, another one is sealed by a sleeve and welded joint. Axial hole is originated in the sleeve and tubular member. The cap is made in the form of metal circular or a circular with sleeve for providing shaft face welded joint from being unsealed. The cap is rigidly connected to tubular member end through contour welded joint. Tubular member ends are overlapped. EFFECT: higher reliability. 10 cl, 3 dwg

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RU 2 072 048 C1

Authors

Logashkin Sergej Alekseevich

Dates

1997-01-20—Published

1992-12-29—Filed