Drill bit with cutter element having multifaceted, slanted top cutting surface
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United States of America Patent
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Jun 29, 2010
Grant Date -
Mar 6, 2008
app pub date -
Sep 5, 2006
filing date -
Sep 5, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A drill bit includes a cutter element having a tapered and faceted side surface extending to a peak, and a polygonal wear face that slopes from the peak toward the cutter element base. The cutter element is mounted in a cone cutter of a rolling cone drill bit and, in certain embodiments, is positioned such that, when the cutter element is in a position farthest from the bit axis, the wear face generally faces and is parallel to the borehole sidewall and the peak engages the borehole bottom.
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