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:
Mar. 25, 2003
Filed:
Aug. 27, 2001
Applicant:
Inventor:
Roy A. Christini, Apollo, PA (US);
Assignee:
Alcoa Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25D 5/10 ; C25D 5/12 ; C25C 7/00 ;
U.S. Cl.
CPC ...
C25D 5/10 ; C25D 5/12 ; C25C 7/00 ;
Abstract
The present invention is directed to methods for applying a protective layer ( ) to the cathode ( ) of an electrolysis cell ( ), where the cell also contains inert anodes ( ) and the protective layer ( ) can comprise a plurality of layers ( ) with an inner layer ( ) of TiB being preferred, and the protective layer ( ) protects the cathode ( )from hot gases ( ) used to pre-heat the cell ( ).