Friction rock stabilizer

Details Friction rock stabilizer Friction rock stabilizer

1991-11-12

1993-03-09

Corbin, David H.

Hydraulic and earth engineering

Earth treatment or control

Rock or earth bolt or anchor

411452, E21D 2100

Patent

active

051921693

ABSTRACT:
A friction rock stabilizer includes a center spine, a plurality of arms extending radially outwardly therefrom, for urging a plurality of friction surfaces into resilient contact with a borehole wall. The friction surfaces are positioned on an arc of a circle measured around the center axis of the borehole, which arc spans a center angle of at least 180 degrees.

REFERENCES:
patent: 4147458 (1979-04-01), Elders
patent: 4316677 (1982-02-01), Ciavatta
patent: 4322183 (1982-03-01), Ciavatta
patent: 4523880 (1985-06-01), Isler
patent: 4650373 (1987-03-01), Seegmiller
patent: 4661022 (1987-04-01), Seegmiller
patent: 4666345 (1987-05-01), Seegmiller
patent: 4826358 (1989-05-01), Brustrom

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