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.

Date of Patent:
Apr. 14, 1981

Filed:

Aug. 01, 1979
Applicant:
Inventors:

Akemi Futakawa, Amagasaki, JP;

Tokio Fukunaga, Amagasaki, JP;

Tsutomu Tani, Amagasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
73579 ; 73593 ;
Abstract

A fault diagnostic device comprises vibrating means for vibrating a winding by feeding current having a predetermined frequency; detecting means for detecting physical value given in said winding by the vibration; and indicating means for indicating the result of the detection by said detecting means whereby a diagnosis of fault can be performed in high reliability.


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