Hydraulic and earth engineering – Earth treatment or control – Rock or earth bolt or anchor
Reexamination Certificate
2004-05-12
2010-11-30
Mayo-Pinnock, Tara (Department: 3671)
Hydraulic and earth engineering
Earth treatment or control
Rock or earth bolt or anchor
C405S266000, C405S303000, C052S158000, C173S001000
Reexamination Certificate
active
07841803
ABSTRACT:
A device for rock bolting with an adapter device (10) for connection of a drilling machine (3) to a self drilling rock bolt (7), in which the adapter device has an adapter element (14) which is sealingly surrounded by a swivel sleeve (13) for connection to one or more external source for flushing medium (8) and bolt grouting medium (9), and in which the adapter element has a thread for connecting to a corresponding thread on the rock bolt (7), and an integral connection portion for connection to the drilling machine (3).
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Prospekt “Hydraulik Hammerbohmaschinen” der Fa. Bohler Drucklegung 4.89.
Jonson Per
Öberg Fredrik
Atlas Copco Rock Drills AB
Mayo-Pinnock Tara
Stone Mark P.
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