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:
Sep. 28, 1999
Filed:
Apr. 08, 1996
Applicant:
Inventor:
Karl Mull, Volketswil-Kindhausen, CH;
Assignees:
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Winterthurer Metallveredelung AG, Winterthur, CH;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25D / ;
U.S. Cl.
CPC ...
205104 ; 205111 ; 205112 ; 205179 ;
Abstract
A structured surface coating is electrochemically deposited on an electrically conductive surface of a component. The component to be coated forms the cathode in a galvanic bath. The process current is raised in discrete steps in a nucleation phase during which island formations are deposited on the surface, with brief pauses between each increase of between 0.1 and 30 sec. The process current is then maintained at a constant level, during which the islands grow. The process sequence may be repeated several times.