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:
Aug. 25, 2015
Filed:
Mar. 07, 2012
Kazuhiro Kodama, Hokkaido, JP;
Kazuhiro Kodama, Hokkaido, JP;
Abstract
A contact resistance value detected by a detection means (a resistance detection part) is compared with a predetermined threshold value. A determining means (an abnormality determining part) determines that there is a failure when the contact resistance value exceeds the predetermined threshold value, and then an abnormality detection signal is outputted from an output means (an output part). Therefore, it is possible to detect a failure in a contact, such as oxidization generated on a surface of a contact or contact pressure reduction generated between contacts, based on the contact resistance value of a contact part.
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