Cutter element with non-rectilinear crest
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United States of America Patent
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Dec 19, 2000
Grant Date -
N/A
app pub date -
Sep 3, 1998
filing date -
Sep 4, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A cutter element for a drill bit. The cutter element has a non-rectilinear crest. The non-rectilinear or curvilinear crest provides an advantageous distribution of the cutting forces across the body of the cutter elements and thus improves bit life. The curvilinear crest also allows the cutter element to more efficiently lift the portion of the formation that is being cut, thereby improving cutting action in certain formations. The cutter elements can have either positive or non-positive draft and can be tungsten carbide inserts.
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