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. 12, 1994
Filed:
Aug. 17, 1993
Applicant:
Inventors:
Rodney L LeRoy, Pointe-Claire, CA;
George Houlachi, Kirkland, CA;
M Barakat Janjua, Pointe-Claire, CA;
Assignee:
Noranda Inc., Toronto, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25F / ;
U.S. Cl.
CPC ...
204146 ; 204116 ; 204118 ;
Abstract
A method of removing zinc from galvanized steel, comprises immersing the galvanized steel in a caustic electrolyte solution, electrically connecting the steel to the positive terminals of a source of direct current, and electrically connecting the negative terminals of the current source to a cathode material which is stable in caustic electrolyte and has a low hydrogen overvoltage.