Tracking shearing cutters on a fixed bladed drill bit with pointed cutting elements
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United States of America Patent
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Jun 13, 2017
Grant Date -
Jan 29, 2015
app pub date -
Sep 22, 2014
filing date -
Apr 23, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A fixed bladed drill bit has a working face that includes a plurality of blades converging at a center of the working face and diverging towards a gauge of the bit, each blade having a leading face and a trailing face, and at least one row of cutting elements disposed on at least one of the plurality of blades proximate to the leading face of the blade, where the row of cutting elements includes at least one pointed cutting element having a cutting end with a rounded apex and at least one shearing cutter. The at least one shearing cutter includes a first shearing cutter positioned proximate to a periphery of the working face.
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