Rock bolt

Details Rock bolt Rock bolt

2003-02-25

2008-11-04

Mayo, Tara L. (Department: 3671)

Hydraulic and earth engineering

Earth treatment or control

Rock or earth bolt or anchor

C405S259500

Reexamination Certificate

active

07445406

ABSTRACT:
An anchor device which includes a pipe (16), an elongate member (18) which is partly inside the pipe and which has an end (20) which protrudes from the pipe (16), and a restraining component (22) which is engaged with the protruding end (20). The pipe (16) and the elongate member (18) are shaped with a plurality of deformations along their respective lengths such that the elongate member (18) can only be withdrawn from the tubular member (16) by further deforming the elongate member (18).

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