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. 30, 1986
Filed:
Jun. 27, 1985
Applicant:
Inventor:
Gerd Jung, Ellwangen, DE;
Assignee:
Varta Batterie Aktiengesellschaft, Hanover, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429181 ; 429171 ; 429172 ; 429173 ;
Abstract
A primary element of the round-cell type is effectively protected from desiccation by a sealing washer made of a flexible foamed plastic (preferably foamed PVC), placed above the depolarization electrode and clamped between the positive cap and the zinc can of the cell. An additional adhesive beading is provided on the carbon rod of the cell to prevent the passage of electrolyte through the central opening in the sealing washer which receives the carbon rod.