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. 01, 1985
Filed:
Jun. 17, 1983
Applicant:
Inventors:
Ajit Y Sane, Willoughby, OH (US);
Douglas J Wheeler, Cleveland Heights, OH (US);
Charles S Kuivila, Evanston, IL (US);
Assignee:
Eltech Systems Corporation, Baca Raton, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25C / ; C25C / ; C25B / ; C25B / ;
U.S. Cl.
CPC ...
204 67 ; 2042 / ; 204283 ; 204284 ; 2042 / ; 204291 ; 204293 ; 204294 ;
Abstract
A method and apparatus for making a drained aluminum electrowinning cathode dimensionally stable. A thin, 1/2 to 10 millimeter coating of substantially stagnant molten aluminum is maintained upon the cathode surface by an openly porous sheath or membrane closely conforming to contours of the electrowinning cathode. The sheath or membrane is made from a material substantially resistant to corrosives present in the aluminum electrowinning; it may be only slightly aluminum wettable, but should be relatively electrically nonconductive.