Electricity: circuit makers and breakers – Multiple circuit control – Multiple switch
Patent
1983-12-02
1985-11-19
Scott, J. R.
Electricity: circuit makers and breakers
Multiple circuit control
Multiple switch
200317, H01H 1370
Patent
active
045544190
ABSTRACT:
A touch-sensitive selection panel structure for a vending machine including a pressure-sensitive membrane-type switch contained between first and second polycarbonate panels comprising the display panel of the vending machine. The touch-sensitive switch configuration is totally transparent to visible light. A product selector window array on the first polycarbonate panel is back-illuminated from within the vending machine with images of the vendable products available, for display in the selector windows on the front face of the vending machine display panel. The images are provided on the back face of the second polycarbonate panel within the vending machine and illuminated from behind in order to project the names and product logos through the membrane switch, and the first polycarbonate panel for viewing by a potential customer. The membrane switch contacts are easily actuatable by merely pressing on a flexible product window area defined in the first polycarbonate sheet, which causes selected membrane switch contacts to close and initiate the vend of a corresponding product. In an alternative embodiment, the membrane switch is replaced by discrete touch-sensitive switches disposed in portions of each of the window areas.
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Duke Herman K.
King Eddie W.
Summerville Don S.
Scott J. R.
The Coca-Cola Company
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