Expandable rock bolt and rock bolting system

Details Expandable rock bolt and rock bolting system Expandable rock bolt and rock bolting system

2007-09-18

2007-09-18

Kreck, John (Department: 3673)

Hydraulic and earth engineering

Earth treatment or control

Rock or earth bolt or anchor

C405S302100

Reexamination Certificate

active

10555030

ABSTRACT:
The present invention is related to a rock bolt (7), expandable by means of a pressure media, for insertion into a borehole. The expandable bolt (7) comprises a connection unit (8) with means (11) for detachable interaction with an expansion means (10) for expansion of the rock bolt (7), as well as with a suspension element (16). The connection unit is designed with such external dimensions so that it may be inserted into the bore-hole. The invention also relates to such a rock bolting system.

REFERENCES:
patent: 2486113 (1949-10-01), Campbell et al.
patent: 3027140 (1962-03-01), Holzbach
patent: 3651651 (1972-03-01), Triplett
patent: 4255070 (1981-03-01), Calhoun
patent: 5997219 (1999-12-01), Krzysztalowicz et al.
patent: 272233 (1988-06-01), None
patent: 427764 (1983-05-01), None
patent: 443398 (1986-02-01), None
patent: WO2005119009 (2005-12-01), None

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