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:
May. 21, 2002
Filed:
Aug. 22, 2000
Tadamitsu Azema, Miyagi-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
In a pressure-sensitive breaker for a battery, a recess is formed at a position on the inner surface of a battery pack opposing a side face of a battery case of a battery. A first terminal is provided to be connected to an external electrode of the battery pack, and a second terminal is provided to be connected to the battery case serving as one electrode of the battery. An electric path is formed of a conductive portion on the surface of an element, and both ends of the conductive portion are connected to the first and second terminals. Due to bending of the side face of the battery case toward the recess caused when the internal pressure in the battery rises above a predetermined value, the element is deformed toward the recess and broken, and the electric path is cut off.