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. 20, 1991
Filed:
Jun. 08, 1990
Applicant:
Inventor:
Thomas J O'Hara, Bay Village, OH (US);
Assignee:
Eveready Battery Company, St. Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ; H01M / ;
U.S. Cl.
CPC ...
429 53 ; 429 56 ; 429168 ; 429177 ;
Abstract
An electrochemical cell having a temperature-activated vent in series with a pressure-activated vent. The inner cover of the inner cell housing has an upstanding rim around a central pressure release vent. The outer cover that closes the outer cell container has an annular area pressed against this rim and sealed to the rim by a heat fusible solder to form a temperature-responsive vent mechanism in series with the pressure-responsive vent.