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:
Dec. 21, 1993
Filed:
Dec. 21, 1992
Robert Flack, Markham, CA;
Battery Technologies Inc., Richmond Hill, CA;
Abstract
Cylindrical alkaline manganese dioxide-zinc cell with improved bottom sealing, where the cell comprises a coaxial assembly of a metal can closed at the bottom, a cylindrical cathode inserted in the can up to abutment at the bottom with an insulating member, a separator system in direct contact with internal surface of the cathode, a zinc anode arranged in the hollow interior of the separator system and insulated from the can, an alkaline electrolyte. The separator system extends up to the bottom end of the cathode, and a thermoplastic sealant is provided at the bottom edge zone of the separator system extending into said zone as a bead. The sealant impregnates the separator system at said edge zone.