Wear resistant plates on a leading transitional surface of the leg for a rotary cone drill bit
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United States of America Patent
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Nov 8, 2016
Grant Date -
Oct 9, 2014
app pub date -
Feb 28, 2014
filing date -
Oct 1, 2010
priority date (Note) -
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Abstract
A rotary cone drill bit includes: a body, a leg depending from the body, a bearing shaft extending from the leg and a cone mounted to the bearing shaft. The leg includes a leading transitional surface. A bottom surface of a hard material plate is attached to a substantially conforming surface of the leg in a position where the hard material plate is disposed on a floor surface formed in or by the leading transitional surface of the leg.
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