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. 28, 1999
Filed:
May. 26, 1998
Akzo Nobel N.V., Arnhem, NL;
Abstract
The present invention relates to a method and a device for sealing a cover plate for an electrolytic cell. Prior-art cell constructions suffer from the problems of, inter alia, a short service life of certain materials and cracking in the materials which results in leakage, which makes it necessary to put the cell out of operation. The problem is solved by the present method of sealing a cover plate for an electrolytic cell, the cell having a base (2), in which risers (1) for the anodes of the cell are attached, the base consisting of at least one basic material with high thermal conductivity, preferably copper, and at least one cover plate (8) which is arranged on the basic material towards the inside of the cell, the riser having a sealing flange (6), to which the cover plate is connected, an additional plate being attached between riser and cover plate to act as a bellows (9; 20), said bellows being attached by welding (10; 11) to the sealing flange (6) of the riser and the cover plate (8), respectively.