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:
Feb. 26, 2002
Filed:
Apr. 13, 2000
Applicant:
Inventors:
Assignee:
Sony Chemicals Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 8/504 ; H02H 5/04 ;
U.S. Cl.
CPC ...
H01H 8/504 ; H02H 5/04 ;
Abstract
An electrical current protection device capable of highly safe and rapid shutoff or suppression of electric current is disclosed. In addition to internal electrical current protection capabilities, external environmental triggers are also provided. The current protection device may include substrate-based thermal metallic fuse, PTC current-suppressing protection, thermal heat elements, integrated-circuit based voltage-drop detector, an FET-based current switch, and an external detector for environmental sensing and trigger.