Drill bit cutter element having multiple cusps
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United States of America Patent
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Aug 16, 2005
Grant Date -
Aug 26, 2004
app pub date -
Feb 21, 2003
filing date -
Feb 21, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
Cutter elements for use in rolling cones rock bits are disclosed having a crown that includes multiple, spaced-apart cusps for enhancing formation removal by creating overlapping Hertzian contact zones. The cusps may be partially dome-shaped, berm shaped or otherwise. The cutter elements provide multiple cutting edges for engaging the formation and may have differing radii and extension length as suitable for particular applications.
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