Ppg Industries, Inc.

James J. Finley

Amy M. Roginski

Charles Richard Coleman

Terry L. Wolfe

Frank Howard Gillery

Pamela L. Martino

Thomas M. Carter

Russell C. Criss

John A. Winter

Amy M Roginski

James J Finley

Charles R Coleman

Russell C Criss

Frank H Gillery

John A Winter

Bruce A Connelly

George H Bowser

Terry L Wolfe

Thomas M Carter

Pamela L Martino

An electrically heatable windshield with a hidden bus bar configuration. A border of opaque ceramic material, preferably a lead borosilicate enamel, is bonded to an interior surface of the transparency about its periphery. Opposing electroconductive bus bars, preferably a low frit content silver-containing ceramic material, are bonded to the ceramic material so that the entire inner edge of the bus bar overlays a portion of the ceramic material and is spaced from the inner edge of the border, providing an intermediate portion of the border between the bus bars and transparency surface that is not covered by the bus bars. An electro-conductive coating is applied to the transparency to interconnect the bus bars and covers to the inner surface of the transparency, the bus bars and the intermediate portion of the ceramic material border so that electric current flowing between the bus bars must flow through the portion of the coating that covers the intermediate portion of the border.

Electrically heatable transparency

A laminated transparency with an electroconductive coating positioned within the laminate. An edge coating composition is applied about the periphery of the laminate to seal the edge of the coating and prevent coating degradation.

Windshield edge seal

Growing community of inventors

New Kensington, PA, United States of America

Amy M Roginski