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:
Jan. 25, 2005
Filed:
May. 19, 2003
Applicants:
Douglas P. Fairchild, Sugar Land, TX (US);
Ali M. Farah, Missouri City, TX (US);
Daniel B. Lillig, Sugar Land, TX (US);
Inventors:
Douglas P. Fairchild, Sugar Land, TX (US);
Ali M. Farah, Missouri City, TX (US);
Daniel B. Lillig, Sugar Land, TX (US);
Assignee:
ExxonMobil Upstream Research Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 3102 ;
U.S. Cl.
CPC ...
Abstract
Methods of welding two pieces of metal to produce a weld joint having excellent fracture toughness are provided. Two pieces of metal are positioned for welding so as to form a narrow weld groove having two sidewalls with bevel angles of less than about 10°. Two or more layers are applied to the weld groove to produce the weld joint such that the heat-affected-zone of the weld joint is substantially free of rogue grains.