The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 2014
Filed:
Dec. 21, 2012
Applicant:
National Oilwell Varco, L.p., Houston, TX (US);
Inventors:
Curtis Clifford Lanning, Montgomery, TX (US);
Aaron E. Schen, Spring, TX (US);
Assignee:
National Oilwell Varco, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/46 (2006.01); E21B 10/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A drill bit for subsurface drilling includes a body; a blade extending from the body and having a front, a back side, and a formation facing surface between the front side and the back side. The blade is configured to have a plurality of cutting elements mounted to it. In addition the drill bit includes a first flex cut extending into the blade from the formation facing surface and positioned between the front side and the back side of the blade. The first flex cut is configured to allow at least a portion of the blade to flex.