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. 14, 2014
Filed:
Sep. 21, 2011
Applicants:
Raju Pillai, Pasadena, TX (US);
Jiinjen Albert Sue, The Woodlands, TX (US);
Unnikrishnan Vasudevan, Pearland, TX (US);
Inventors:
Raju Pillai, Pasadena, TX (US);
Jiinjen Albert Sue, The Woodlands, TX (US);
Unnikrishnan Vasudevan, Pearland, TX (US);
Assignee:
National Oilwell Varco, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 1/09 (2006.01); B23K 26/00 (2014.01); B23K 26/08 (2014.01);
U.S. Cl.
CPC ...
B23K 26/0066 (2013.01); C21D 1/09 (2013.01); B23K 26/0012 (2013.01); B23K 26/0009 (2013.01); B23K 2201/16 (2013.01); B23K 2201/04 (2013.01); B23K 26/08 (2013.01); B23K 26/0015 (2013.01);
Abstract
A method of laser hardening comprises irradiating a surface of a component with a laser beam to form a first band of irradiated material, irradiating the surface of the component with the laser beam to form a second band of irradiated material that overlaps the first band of irradiated material, where the first band and the second band have a pitch to width ratio of between about 0.5 and about 0.78.