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:
Jun. 29, 2004
Filed:
Nov. 25, 2002
Robert E. Frischauf, Lakewood, OH (US);
William E. Eckles, Cleveland Heights, OH (US);
Taskem Inc., Brooklyn Heights, OH (US);
Abstract
The present invention relates to an apparatus ( ) for applying a zinc-nickel electroplate to a workpiece. The apparatus comprises a zinc-nickel electroplating bath ( ) comprising an amine additive, such as poly(alkyleneimine), which is capable of being oxidized in the bath to cyanides. The bath has a pH more than about A cathode workpiece ( ) is positioned in the bath. An anode assembly ( ) is also positioned in the bath. The anode assembly comprises an enclosure ( ) defining an anolyte compartment ( ), at least a portion of the enclosure being an ion exchange membrane ( ). An anolyte ( ) is positioned in the compartment. An insoluble metal anode ( ) is immersed in the anolyte. The anolyte is a conductive salt or base solution and the anode is a metal or metal coating selected from the group consisting of nickel, cobalt, iron, chromium and alloys thereof.