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. 15, 2014
Filed:
Sep. 02, 2010
Masayoshi Higashi, Tokyo, JP;
Masaaki Kurokawa, Tokyo, JP;
Kayoko Kawata, Tokyo, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
An inspection device that is capable of inspecting all heat-transfer-tube sealing portions in a steam generator and that is also capable of analyzing a defect shape is provided. An inspection device that employs the eddy-current flaw detection method to inspect the presence/absence of a defect in a welded portion () between a tube () and a tube plate () is provided with a main unit () that has a circular-column portion (A), which is inserted into the tube (), and a flange portion (B), which is pressed against the tube plate (), and that is rotatable with respect to the welded portion (); a probe () that is disposed inside the main unit (), that can be moved close to and away from the welded portion (), and that detects a defect in the welded portion (); and a pressing portion () that presses the probe () toward the welded portion.