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:
Sep. 13, 2011
Filed:
Feb. 08, 2008
Applicant:
Joshua Gatell, Cypress, TX (US);
Inventor:
Joshua Gatell, Cypress, TX (US);
Assignee:
Smith International, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 10/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
A hard formation drill bit that includes a plurality of gage cutting elements disposed on the at least one roller cone, wherein at least one of the plurality of gage cutting elements includes a cutting portion. The cutting portion includes a partially spherical leading edge and an obtuse relieved trailing edge, wherein a volume of the partially spherical leading edge is greater than a volume of the obtuse relieved tailing edge. Also, a method of drilling a formation that includes such a drill bit. Also included is an insert and a method of manufacturing a gage cutting element.