US Patent 8141664 Hybrid drill bit with high bearing pin angles
Patent 8141664 was granted and assigned to Baker Hughes on March, 2012 by the United States Patent and Trademark Office.
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Patent abstract
A hybrid drill bit having at least two rolling cutters, each rotatable around an axis of rotation, at least one of the rolling cutters having a high pin angle, and at least one fixed blade. The pin angle can encompass pin angles above 39 degrees to less than 393 degrees. The drill bit can allow the rolling cutters to engage a shoulder portion and/or gage portion of the bit profile and assist the fixed blade(s) in these areas. The at least two rolling cutters can be disposed at different pin angles.
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Patent Inventor Names
Alan J. Massey0
Anton F. Zahradnik0
Don Q. Nguyen0
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US Patent 08141664 Hybrid drill bit with high bearing pin angles US Patent 8141664 Hybrid drill bit with high bearing pin angles
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Patent Number
081416640
Patent Number
81416640
Edits on 24 Sep, 2022
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Is a
Current Assignee
Patent Jurisdiction
Patent Number
081416640
Date of Patent
March 27, 2012
0Patent Application Number
123970940
Date Filed
March 3, 2009
0Patent Primary Examiner
Edits on 14 Dec, 2021
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US Patent 08141664 Hybrid drill bit with high bearing pin angles
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
08141664
Date of patent
March 27, 2012
Patent application number
12397094
Date Filed
March 3, 2009
Patent primary examiner
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