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:
May. 18, 1976
Filed:
Feb. 24, 1975
Michael J Fairweather, Rossland, CA;
John A Topping, Oakville, CA;
Abstract
A seal for a terminal member of a nickel-cadmium battery cell, provided with a, for example Ceramvar, terminal electrode which is first of all electroplated with nickel and is then electroplated with chromium. A ceramic ring is located between the terminal electrode and a shoulder portion of a steel collar in the battery, the shoulder portion having an axial length greater than the axial length of the ceramic ring and the ceramic ring being brazed to the central region of the shoulder portion. Glass rings, for example, which may be transparent, are provided on opposite sides of the ceramic ring and rest on ledges of the shoulder portion whereby a respective void is formed between the glass ring and the respective adjacent surface of the ceramic ring.