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:
May. 14, 2002
Filed:
Jan. 08, 2001
Applicant:
Inventors:
Shunji Iwago, Tosa, JP;
Masayoshi Uchida, Kochi, JP;
Assignee:
Machida Steel Structure Corporation, Tosa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 3/502 ;
U.S. Cl.
CPC ...
B23K 3/502 ;
Abstract
In the present invention, by the method using a backing material such as copper, which is not melted by a welding heat source, in an end face of a member without using a backing metal or consumable backing material at a joint welding time, overlay welding is performed to increase a plate thickness and a plate width. Thereafter, edge preparation including a member of a designed joint weld location and an overlay weld is performed, and the groove processed portion is placed to an opponent member to provide joint welding in order to obtain an effective throat depth more than a plate thickness and a plate width of the member.