H - Electricity – 05 – B
Patent
H - Electricity
05
B
309/5
H05B 3/86 (2006.01) B32B 17/10 (2006.01)
Patent
CA 2001559
An electrically heatable windshield with a hidden bus bar configuration. A border of opaque ceramic material is bonded to an interior surface of the transparency about its periphery. Opposing electroconductive bus bars 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 electroconductive coating is applied to the transparency to interconnect the bus bars and 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.
Carter Thomas M.
Coleman Charles Richard
Criss Russell C.
Finley James J.
Gillery Frank Howard
Borden Ladner Gervais Llp
Ppg Industries Ohio Inc.
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