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:
Jan. 08, 2013
Filed:
Aug. 26, 2009
Shunzou Ohshima, Kosai, JP;
Shunzou Ohshima, Kosai, JP;
Yazaki Corporation, Tokyo, JP;
Abstract
A protective device for a load circuit that instantly cuts off the load circuit when a dead short-circuit has occurred in the load circuit. The protective device includes a first detection circuit which detects a counter-electromotive force Einduced in a common wiring line for connecting a plurality of load circuits and a power source, and a second detection circuit which detects a counter-electromotive force Einduced at part of a load connection wiring line for connecting the individual load circuits. The load circuit is cut off when the first detection circuit detects that the counter-electromotive force Einduced in the common wiring line has exceeded a predetermined value, and the second detection circuit detects that the counter-electromotive force Ethat has the same direction as that of Ehas been generated in the load connection wiring line.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile