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:
Feb. 21, 2006
Filed:
Apr. 02, 2003
Keith Buckle, Southbury, CT (US);
Keith Buckle, Southbury, CT (US);
The Gillette Company, Boston, MA (US);
Abstract
A zinc/air cell having thin walled cup shaped anode casing and cathode casing. The cell may be a button cell having an anode comprising zinc and a cathode, which may be catalytic, comprising manganese dioxide. The anode and cathode casings have small wall thicknesses, preferably between 2 and 5 mil (0.0508 and 0.127 mm), desirably between about 2 and 3 mil (0.0508 and 0.0762 mm). There is an insulating seal ring covering at least a portion of the anode casing side walls. During cell assembly the cathode casing side wall is pushed over at least a portion of the anode casing side wall with insulating sealing disk therebetween. A tight interference fit is achieved with the outside diameter of the anode casing plus insulating seal thereon being preferably between about 2 and 4.5 mil (0.0508 and 0.114 mm) greater than the inside diameter of the cathode casing. This reduces the tendency of the casing side walls to spring back after crimping.