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Electrical contact arrangement for a coating process

United States Patent

8,535,501
September 17, 2013
View the Complete Patent at the US Patent & Trademark Office
A protective coating is applied to the electrically conductive surface of a reflective coating of a solar mirror by biasing a conductive member having a layer of a malleable electrically conductive material, e.g. a paste, against a portion of the conductive surface while moving an electrodepositable coating composition over the conductive surface. The moving of the electrodepositable coating composition over the conductive surface includes moving the solar mirror through a flow curtain of the electrodepositable coating composition and submerging the solar mirror in a pool of the electrodepositable coating composition. The use of the layer of a malleable electrically conductive material between the conductive member and the conductive surface compensates for irregularities in the conductive surface being contacted during the coating process thereby reducing the current density at the electrical contact area.
Kabagambe; Benjamin (Allison Park, PA), McCamy; James W. (Export, PA), Boyd; Donald W. (Cheswick, PA)
PPG Industries Ohio, Inc. (Cleveland, OH)
13/ 015,626
20120193233
January 28, 2011
NOTICE OF GOVERNMENT SUPPORT This invention was made with Government support under Contract No. DE FC36-08GO18033 (DOE SOLAR POWER) awarded by the Department of Energy. The United States Government may have certain rights in this invention.