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. 11, 2009
Filed:
Apr. 07, 2006
Applicant:
Sung-rae Kang, Cheonan-si, KR;
Inventor:
Sung-rae Kang, Cheonan-si, KR;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 5/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A backup fuse device includes a switching unit electrically conducted to perform electrical signal transfer when it is determined that electrical signal transfer through a main fuse is failed, and a backup fuse opening to block the electrical signal transfer when the voltage of the electrical signal supplied through the electrical conduction of the switching unit exceeds a predetermined level. An electronic apparatus including the backup fuse device may also include the main fuse, a power supply unit, and a circuit. A method of operating the backup fuse device is further provided.