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:
Nov. 07, 1978
Filed:
Dec. 27, 1977
Robert R Dubin, Ballston Lake, NY (US);
Electric Power Research Institute, Inc., Palo Alto, CA (US);
Abstract
A new seal for a sodium-sulfur battery is disclosed herein. The sodium-sulfur battery uses two cylindrical containers for containing sulfur and sodium in molten states and a beta-alumina electrolyte tube located primarily within the sulfur container. The battery disclosed herein includes a novel header, preferably a metal header, between the containers and through which the beta-alumina tube extends. In order to prevent either the sulfur or sodium from passing between the header and tube, the header includes an inner circumferential surface which forms a continuous mechanical seal around and against the tube to prevent the sulfur or sodium from passing therebetween. The header is attached to, but must electrically isolate, the two containers.