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. 23, 2014
Filed:
Nov. 09, 2010
Applicants:
Mark L. Jones, Draper, UT (US);
Kyle E. Johnson, Murray, UT (US);
Inventors:
Mark L. Jones, Draper, UT (US);
Kyle E. Johnson, Murray, UT (US);
Assignee:
Atlas Copco Secoroc LLC, Grand Prairie, TX (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 10/02 (2006.01); E21B 10/43 (2006.01);
U.S. Cl.
CPC ...
E21B 10/43 (2013.01);
Abstract
A drill bit configured for boring holes or wells into the earth include a plurality of blades configured with a recessed center such that the blades cut a core therebetween. Cutting elements in the recessed center are configured to cut and remove the core. The recessed center has a first diameter at a height from the cutting elements in the recessed center and a second diameter smaller than the first diameter such that the confining stress on the core is relieved prior to being cut by the cutting elements in the recessed center.