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:
Jan. 05, 1982
Filed:
Aug. 08, 1980
Applicant:
Inventors:
Thomas Kuhl, Eppstein, DE;
Hans Sauer, Idstein-Walsdorf, DE;
Assignee:
Varta Batterie Aktiengesellschaft, Hanover, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429172 ; 429174 ; 429185 ;
Abstract
A closure for a galvanic element, and particularly a cylindrical cell, is formed in substance of a cap-like or toroidal, resilient member, whose upstanding outer rim is segmented by slits into distinct flaps. These are therefore capable of acting resiliently in a radial direction and are capable of maintaining in the sealing region a steady sealing pressure between the cup and a plastic closure member. During closing of the cell through crimping, the flaps are supported from inside by a crimper support sleeve. In this way, the plastic of the closure body is plasticized during movement of the crimping tool toward the die.