Electric heating – Heating devices – Combined with diverse-type art device
Patent
1988-12-27
1995-05-09
Reynolds, Bruce A.
Electric heating
Heating devices
Combined with diverse-type art device
219547, H05B 300
Patent
active
054142407
ABSTRACT:
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.
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Carter Thomas M.
Coleman Charles R.
Criss Russell C.
Finley James J.
Gillery Frank H.
PPG Industries Inc.
Reynolds Bruce A.
Siminerio Andrew C.
Switzer Michael D.
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