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:
Jul. 05, 2016
Filed:
Jul. 20, 2009
Applicant:
Cary A. Roth, Spring, TX (US);
Inventor:
Cary A. Roth, Spring, TX (US);
Assignee:
Smith International, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21K 31/00 (2006.01); B23P 15/28 (2006.01); B23K 15/00 (2006.01); B23K 15/06 (2006.01); B23K 31/02 (2006.01);
U.S. Cl.
CPC ...
B23P 15/28 (2013.01); B23K 15/0053 (2013.01); B23K 15/0093 (2013.01); B23K 15/06 (2013.01); B23K 31/025 (2013.01); B23K 2201/20 (2013.01); B23K 2203/04 (2013.01);
Abstract
A method to manufacture a drill bit including constructing a bit head portion of the drill bit, constructing a bit shank portion of the drill bit, aligning the bit head portion with the bit shank portion, and electron beam welding a butted joint between the bit head portion and the bit shank portion.