Tool driving or impacting – With vehicle support for drive
Reexamination Certificate
2006-01-03
2006-01-03
Huynh, Louis K. (Department: 3721)
Tool driving or impacting
With vehicle support for drive
C173S025000, C173S028000
Reexamination Certificate
active
06981559
ABSTRACT:
An articulated boom arm for a rock boring machine, comprising a first kinked member having a drill guide at one end and a base pivot at the other end, and a pair of pivoted links. One of said links having a first end pivoted at said base pivot, the other of the links having a drill pivotally mounted at a first end thereof. The second ends of The first and second links being pivoted to each other whereby said drill is reciprocally linearly movable along said first member with a drill bit aligned with said drill guide and at one extremity of the reciprocal movement both said pair of links are substantially longitudinally aligned and extend towards said drill guide, and at the other extremity of the reciprocal movement both said pair of links are substantially longitudinally aligned and extend away from said drill guide.
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Rubie Peter John
Russell Alan John
Hedman & Costigan ,P.C.
Huynh Louis K.
Nathaniel Chukwurah
RME Underground Pty Ltd.
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