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. 04, 2006
Filed:
Aug. 08, 2002
Masataka Tamura, Kanagawa-ken, JP;
Yoshinobu Makino, Tokyo, JP;
Wataru Kono, Tokyo, JP;
Seiichiro Kimura, Tokyo, JP;
Nobuichi Suezono, Kanagawa-ken, JP;
Hidenori Takahashi, Kanagawa-ken, JP;
Masataka Tamura, Kanagawa-ken, JP;
Yoshinobu Makino, Tokyo, JP;
Wataru Kono, Tokyo, JP;
Seiichiro Kimura, Tokyo, JP;
Nobuichi Suezono, Kanagawa-ken, JP;
Hidenori Takahashi, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A repair method for a structure having an open flaw in a welding heat affected portion, including, removing at least a part of the open flaw and thereby forming a concave portion in the welding heat affected portion, forming build-up weld layers so as to fill the concave portion, treating a surface of the build-up layers to reduce tensile residual stress by means of at least one of laser peening, shot blasting and water jet machining. Also disclosed is an apparatus suitable for carrying out the repair method.