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:
Jun. 28, 2016
Filed:
Aug. 23, 2013
Applicant:
Varel International Ind., L.p., Carrollton, TX (US);
Inventors:
Kyle Nobile, Carrollton, TX (US);
Matt Stroever, Carrollton, TX (US);
David Michel Harrington, Dallas, TX (US);
Karl W. Rose, Carrollton, TX (US);
Assignee:
VAREL INTERNATIONAL IND., L.P., Carrollton, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 10/16 (2006.01); E21B 10/52 (2006.01); E21B 29/00 (2006.01);
U.S. Cl.
CPC ...
E21B 10/52 (2013.01); E21B 10/16 (2013.01); E21B 29/00 (2013.01);
Abstract
A hybrid rotary cone drill bit includes a plurality of legs. A bearing shaft extends from each leg, and a rotary cone is rotationally coupled to each bearing shaft. At least one rotary cone includes a nose row of cutting structures, an inner row of cutting structures, and a gage row of cutting structures. The nose row and the inner row of cutting structures are formed of milled teeth. The gage row of cutting structures is formed of cutter inserts.