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:
Oct. 17, 2000
Filed:
May. 27, 1998
Applicant:
Inventors:
Reinhard Feige, Bonn, DE;
Gerhard Merker, Rockenberg, DE;
Assignee:
Aluminium-Salzschalcke Aufbereitungs GmbH, Lunen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25B / ; C25C / ; C25D / ;
U.S. Cl.
CPC ...
204279 ; 20419637 ; 75301 ; 264104 ; 264105 ;
Abstract
A bottom lining for electrolytic cells formed from steel pots for use in primary production and secondary refining, made from a monolithic stamping of a finely granulated powder having a high alumina content, and a process for producing same. The powder is obtained from aluminum industrial scrap recovery and salt slags and has the following components in the following amounts based on dried weight: