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:
Nov. 08, 2016
Filed:
Feb. 28, 2014
Applicant:
Varel International Ind., L.p., Carrollton, TX (US);
Inventors:
David Michel Harrington, Dallas, TX (US);
Amnach Kongamnach, Lavon, TX (US);
Cesar A. Fierro, Lewisville, TX (US);
Assignee:
VAREL INTERNATIONAL IND., L.P., Carrollton, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/50 (2006.01); E21B 10/08 (2006.01);
U.S. Cl.
CPC ...
E21B 10/08 (2013.01);
Abstract
A rotary cone drill bit includes: a body, a leg depending from the body, a bearing shaft extending from the leg and a cone mounted to the bearing shaft. The leg includes a leading transitional surface. A bottom surface of a hard material plate is attached to a substantially conforming surface of the leg in a position where the hard material plate is disposed on a floor surface formed in or by the leading transitional surface of the leg.