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. 04, 1979
Filed:
Dec. 19, 1977
Applicant:
Inventor:
Michael P Brennan, Helsby, GB;
Assignee:
Chloride Silent Power Limited, London, GB;
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ; H01M / ;
U.S. Cl.
CPC ...
296235 ; 264136 ; 264251 ; 264257 ; 264271 ; 264299 ; 264339 ; 429218 ;
Abstract
In a sodium sulphur cell, a cathode electrode of annular form comprising a plurality of segments, each of trapezoidal form in cross-section is made by compressing a blanket or sheet of carbon or graphite felt or fibres in a heated mould, which is shaped to produce the segments joined by thin webs, the material being impregnated with sulphur or sodium polysulphide before or after insertion in the mould, and the material being cooled before removal from the mould. Alternatively, the segments may be formed from the blanket or sheet by using shaped rolls, the mateial being cooled, e.g., by water or air, as it leaves the rolls.