Friction rock stabilizer with point anchor

Details Friction rock stabilizer with point anchor Friction rock stabilizer with point anchor

2006-09-25

2008-05-06

Kreck, John (Department: 3672)

Hydraulic and earth engineering

Earth treatment or control

Rock or earth bolt or anchor

Reexamination Certificate

active

07367751

ABSTRACT:
A friction rock stabilizer includes an elongated metal tube having and interior and an exterior surface with a distal end and a proximal end. The distal end is tapered and a flange is positioned adjacent the proximal end. The tube further includes a slit that runs substantially the entire length thereof. The tube is constructed so as to be capable of being positioned within a bore formed in the wall of a mine. An internal sleeve is located adjacent the distal end of the tube. A tapered expander is also located within the interior of the tube adjacent the distal end and is actuatable from the proximal end of the tube after the point anchor is installed in a bore. The tapered expander expands the distal end of the tube to firmly anchor the stabilizer in the bore.

REFERENCES:
patent: 4098087 (1978-07-01), Swain
patent: 4312604 (1982-01-01), Fu et al.
patent: 4382719 (1983-05-01), Scott
patent: 4445808 (1984-05-01), Arya
patent: 4652178 (1987-03-01), Kates et al.
patent: 5033909 (1991-07-01), McCartney
patent: 5295768 (1994-03-01), Buchhorn et al.
patent: 6935811 (2005-08-01), Simmons et al.

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