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:
May. 02, 2017
Filed:
Jun. 05, 2015
Applicant:
Longyear Tm, Inc., South Jordan, UT (US);
Inventors:
Christian M. Lambert, Draper, UT (US);
Michael D. Rupp, Murray, UT (US);
Assignee:
LONGYEAR TM, INC., Salt Lake City, UT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/48 (2006.01); E21B 10/02 (2006.01); E21B 10/55 (2006.01); E21B 10/42 (2006.01);
U.S. Cl.
CPC ...
E21B 10/55 (2013.01); E21B 10/02 (2013.01); E21B 10/42 (2013.01); E21B 10/48 (2013.01); Y10T 29/4998 (2015.01);
Abstract
A drill bit having a shank and a crown. The crown defines a central axis and has at least one fixed segment. Each fixed segment has a cutting face and a plurality of surface features that are continuous with a distal surface of the cutting face. The plurality of surface features and a distal portion of the cutting face of each segment are integrally formed of a selected matrix material, and each surface feature consists solely of the selected matrix material. The matrix of the selected matrix material is configured to erode to expose abrasive particles within the matrix.