Is a
Patent attributes
Patent Applicant
0
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Vincent W. Shotton0
Scott McDonough0
Zhou Yong0
Date of Patent
August 16, 2005
0Patent Application Number
103713880
Date Filed
February 21, 2003
0Patent Citations Received
Patent Primary Examiner
Patent 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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