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. 07, 1990
Filed:
Dec. 27, 1988
Kyohei Yamamoto, Himeji, JP;
Akira Morishita, Himeji, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A starter protector for a starter of an engine has a switching circuit which turns the starter off, and a calculating circuit which measures the frequency of ripples which are superimposed on either the terminal voltage or the terminal current of the starter and controls the switching circuit so as to turn off the starter when the frequency exceeds a prescribed value. In another form of the invention, a calculating circuit counts the number of ripples which are superimposed on the terminal voltage or terminal current of the starter and controls the switching circuit to turn off the starter when the number of ripples exceeds a prescribed value.