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. 06, 2004
Filed:
May. 02, 2003
Applicant:
Inventor:
Robert W. Carter, Madison, AL (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 2/012 ;
U.S. Cl.
CPC ...
B23K 2/012 ;
Abstract
A friction stir welding device that is configured to perform convention friction stir welding as well as self-reacting friction stir welding. A pin passes through an upper shoulder and can selectively attach to and detach from a lower shoulder in a preferred embodiment. A controller maintains the discrete position of, and/or force applied by, the upper and lower shoulders during self-reacting friction stir welding, or maintains the pin at a desired depth and/or applied force during conventional friction stir welding.