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:
Aug. 09, 1988
Filed:
Oct. 20, 1986
Applicant:
Inventors:
Raschad Mady, Pulheim, DE;
Caecillie Daniel, Monheim, DE;
Detlev Bohnhorst, Cologne, DE;
Karl-Heinz Gottwald, Erftstadt, DE;
Roland Morlock, Bergheim, DE;
Assignee:
Gerhard Collardin GmbH, Cologne, DE;
Primary Examiner:
Int. Cl.
CPC ...
C23C / ; C23C / ;
U.S. Cl.
CPC ...
148 / ;
Abstract
A method for phosphate coating zinc or nickel-zinc alloy electrolytically coated metal surfaces, in which they are exposed to a phosphating solution containing zinc, manganese, and phosphate ions, and optionally cobalt and/or nitrate ions. The method is conducted at an elevated temperature for up to slightly more than 5 seconds.