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:
Apr. 24, 2012
Filed:
Mar. 31, 2008
Applicant:
William A. Ferrando, Arlington, VA (US);
Inventor:
William A. Ferrando, Arlington, VA (US);
Assignee:
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electrically assisted friction stir welding method and arrangement in which the required downward/pressing force typically exerted on a workpiece is substantially reduced. The method and apparatus involves the creation of a localized heated zone on a workpiece undergoing a welding operation. The localized heated zone is created using a resistive heating circuit running through the friction stir welding tool and the workpiece.