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:
Oct. 23, 2018
Filed:
Mar. 08, 2016
Applicant:
Shear Bits, Ltd., Calgary, CA;
Inventors:
John James Herman, Cypress County, CA;
Dallas Wilkins, Calgary, CA;
Ryan J. C. Marley, Airdrie, CA;
Timothy P. Beaton, Calgary, CA;
Assignee:
Shear Bits, Ltd., Calgary, AB, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 10/43 (2006.01); E21B 10/55 (2006.01); E21B 10/54 (2006.01); E21B 10/42 (2006.01);
U.S. Cl.
CPC ...
E21B 10/43 (2013.01); E21B 10/54 (2013.01); E21B 10/55 (2013.01); E21B 2010/425 (2013.01);
Abstract
A drill bit includes a bit body defining a plurality of blades extending from a selected distance from an axis of rotation of the bit body to a gage face. A plurality of only gouging cutters is mounted on the bit body. At least one of the plurality of blades has a blade top surface longitudinally behind the tips of the gouging cutters at a selected distance from the tips of the gouging cutters.