Hydraulic and earth engineering – Earth treatment or control – Rock or earth bolt or anchor
Reexamination Certificate
2007-07-05
2010-10-26
Wright, Giovanna C (Department: 3672)
Hydraulic and earth engineering
Earth treatment or control
Rock or earth bolt or anchor
C405S288000, C405S290000, C405S303000, C175S052000, C175S085000
Reexamination Certificate
active
07819609
ABSTRACT:
A module is for use in drilling a borehole in a face of a mine passage using a drilling element and installing a bolt in the borehole once formed. The module may include a bolt holder for holding a plurality of bolts and a drilling element holder for holding a plurality of different drilling elements. A manipulator moves along an arcuate path between the bolt and drilling element holders to deliver the respective components to a drill head positioned along the arcuate path. The drill head may also slide relative to the mast in two different directions, and includes a drill guide for determining the location of the face to be worked. Related aspects of control of the module and methods are disclosed.
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Collins Craig M.
Hinshaw Gregory E.
Kyslinger William A.
Schwab William B.
Wilson Henry E.
J.H. Fletcher & Co.
King & Schickli PLLC
Wright Giovanna C
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