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. 30, 2013
Filed:
Aug. 28, 2006
Applicant:
Masaki Yamano, Suita, JP;
Inventor:
Masaki Yamano, Suita, JP;
Assignee:
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 29/24 (2006.01); G01N 29/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
A circumferential angle of incidence αi of an ultrasonic wave transmitted from an ultrasonic probeupon a tubular test object P and an axial angle of incidence βi of the ultrasonic wave transmitted from the ultrasonic probeupon the tubular test object P are set based on a ratio of thickness to outer diameter t/D of the tubular test object P so that an internal refraction angle θk calculated from the circumferential angle of incidence αi, the axial angle of incidence βi, and the ratio of thickness to outer diameter t/D of the tubular test object may be not less than 35° and not more than 60°.