Patent ID: 8123967
Filing Date: 2012-02-28
Classification: B05D,C23C,Y10T

Abstract:
1. A method for producing an article having a decorative coating comprising: providing a product including a substrate having a surface electroplated with nickel and chromium; depositing at least a first coating layer onto at least a portion of the electroplated surface of the substrate using a physical or chemical vapor deposition method in a vacuum chamber at sub-atmospheric pressure, the first coating layer comprising a first material of nitride of zirconium having a first color; depositing a second metal layer of oxy-carbide zirconium over the first coating layer, the second metal layer having a second color that is visually contrasting to the first color; and tumbling or vibratory finishing the product with a media to form a random non-uniform arrangement of apertures or holes through the second metal layer, the apertures extending through the second metal layer and exposing a portion of the first layer; wherein the apertures create a decorative pattern comprising features distinguishable by an unaided human eye.