Boring or penetrating the earth – Processes
Reexamination Certificate
2007-12-25
2007-12-25
Tsay, Frank (Department: 3672)
Boring or penetrating the earth
Processes
C175S061000, C175S073000
Reexamination Certificate
active
10870594
ABSTRACT:
A method of drilling through a masonry structure20includes the steps of providing a drill10and using the drill10to drill a bore18in the masonry structure20. The method also includes a step of providing a reaction member in the form of a lever28and causing engagement of the lever28with the masonry structure20and with the drill10within the masonry structure20such that the lever28may provide a reaction force to assist the movement of the drill10through the structure20as it drills the bore18.
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Smith-Hill and Bedell
Tsay Frank
LandOfFree
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