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:
Oct. 02, 2001
Filed:
Sep. 08, 1999
Tadamitsu Azema, Miyagi-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
A cell electrical path breaking mechanism in which an electrical path is formed between a cell case and an external cathode through a diaphragm and a connection member. When the internal pressure in the cell case increases to a value equal to or greater than a predetermined value, causing the diaphragm to be displaced upward, the connection member is severed, so that the electrical path is broken. Even when flammable gas or the like is generated in the cell due to an abnormality in the cell, the cell electrical path breaking mechanism makes the cell safe to use by preventing an arc produced when the connection member is severed as a result of the displacement of the diaphragm from igniting the flammable gas.