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. 13, 2009
Filed:
Jun. 23, 2004
Applicants:
Douglas J. Robinson, Sun Lakes, AZ (US);
Stacey A. Macdonald, Phoenix, AZ (US);
Davide Scotti, Cinisello Balsamo, IT;
Francesco Todaro, Milan, IT;
Inventors:
Douglas J. Robinson, Sun Lakes, AZ (US);
Stacey A. MacDonald, Phoenix, AZ (US);
Davide Scotti, Cinisello Balsamo, IT;
Francesco Todaro, Milan, IT;
Assignee:
De Nora Elettrodi S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25C 7/02 (2006.01); C25C 7/00 (2006.01); C25C 1/12 (2006.01); C25C 1/08 (2006.01); C25C 1/14 (2006.01); C25C 1/16 (2006.01); C25C 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A cell () for metal electrowinning from metal ion solutions is described, wherein the cathode () consists of a falling bed of growing beads; the beads, withdrawn from the lower part of the bed, are recycled to the top section of the cathodic compartment by means of an external vertical duct ().