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:
Nov. 16, 1999
Filed:
Nov. 14, 1997
Marcus K Boolish, Parma, OH (US);
Ernest D Botos, Gainesville, FL (US);
Eveready Battery Company, Inc., St. Louis, MO (US);
Abstract
An electrochemical cell having a cell housing containing active components of the cell and having an inner cover and vent passage provided in the inner cover. A vent with a seal member is force-fitted within the vent passage. A current interrupt contact is provided on an outer cover and facing the seal member for providing electrical contact between the outer cover and a current path of the cell. Upon reaching a predetermined internal cell pressure, the seal member is forcibly released from the vent passage and, at the same time, forcibly engages the current interrupt contact to interrupt the flow of current from within the cell to the outer cover.