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:
Oct. 11, 2022
Filed:
Apr. 27, 2021
Okazaki Manufacturing Company, Kobe, JP;
OKAZAKI MANUFACTURING COMPANY, Kobe, JP;
Abstract
A crack detection device for detecting a crack that occurs in a structure, includes: an MI cable that includes a metal sheath and a conductive wire accommodated in the metal sheath via a mineral insulating powder, and that is disposed along the structure so as to intersect an assumed crack C in a part of the structure where occurrence of a crack is assumed; a joint portion that is made of a metal that forms a joint when solidified from a melting state, and that joins the MI cable to the structure or a member fixed to the structure; and a detection device connected to both ends of a conductive wire, and configured to detect electrical characteristics of the conductive wire. The joint portion is present on one side and the other side with respect to the assumed crack C in a direction intersecting the assumed crack C.