Illumination – Door knob or keyhole illuminator
Patent
1996-07-18
1997-06-03
Husar, Stephen F.
Illumination
Door knob or keyhole illuminator
362 84, 362394, E05B 1710
Patent
active
056347103
ABSTRACT:
An improved key hole light which can be easily added to an existing door lock or ignition switch whose illuminating element is an electroluminescent panel which is die cut into a flat doughnut shaped pattern. The inside of the pattern is the size of a standard key hole area of about one half of one inch and the outside diameter of the panel is about one inch. A two inch long tail portion is integral with the doughnut shape which allows the flexible light display to be bent and adhered to the contours of a lock assembly or door knob assembly. An extendible pair of coated wires attach the light display to an electronic module which contains a power supply, a timer circuit and a high voltage transformer. A conductive switch panel is connected by two wires to the electronic module. When a person touches his or her finger to any portion of the conductive switch panel it causes the light display to illuminate for approximately ten seconds and then automatically turn off.
REFERENCES:
patent: 4234909 (1980-11-01), Cotroneo
patent: 4293894 (1981-10-01), Blank
Di Russo David
Tarlow Kenneth
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