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:
Jun. 19, 2001
Filed:
Jun. 30, 1999
Applicant:
Inventor:
James A. Whitehouse, Gig Harbor, WA (US);
Assignee:
MCE Technologies Incorporated, Seattle, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 2/012 ; B23K 3/102 ;
U.S. Cl.
CPC ...
B23K 2/012 ; B23K 3/102 ;
Abstract
A knock-down anvil assembly provides a rotary anvil ring inside the cylindrical end portions of tank sections to be stir welded together as a butt joint, and an external reactive roller unit is provided which bears against the outer faces of these end portions at a location diametrically opposite from the stir welding tool. The anvil assembly can be disassembled within the finished tank into components which can be individually removed through an access opening in an end cover of the tank.