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:
Apr. 16, 1985
Filed:
Nov. 09, 1983
Sandor Molnar, Neuhausen, CH;
Swiss Aluminium Ltd., Chippis, CH;
Abstract
In a fused salt electrolytic cell used in the production of aluminum, a cathode having work faces which are wet by aluminum, are resistant to attack by the molten electrolyte and are electrically conductive, is made up of a bed of loose shaped pieces or bodies located in the molten electrolyte. The pieces or bodies are made of a plurality of composite material elements bonded together which sink in molten aluminum, the composite material elements comprise a fine granular or chip-shaped substrate material selected from the group consisting of carbon, graphite, anthracite, aluminum nitride, silicon carbide and mixtures thereof having a thin layer coating of a material selected from the group consisting of titanium diboride, titanium carbide, titanium nitride, zirconium diboride, zirconium carbide, zirconium nitride and mixtures thereof completely and densely covering the surface of the substrate wherein the spaces between the coated substrate composite materials when bonded together to form the bodies are at least partly filled with the coating substance.