Illumination – Door knob or keyhole illuminator
Patent
1997-03-11
1998-09-08
Husar, Stephen F.
Illumination
Door knob or keyhole illuminator
362152, 362251, E05B 1710
Patent
active
058035818
ABSTRACT:
A keyhole illuminating device incorporating a constantly-lit rocker switch to provide continuous illumination and high visibility, without a significant expenditure of energy. The device is easily installed in a door jamb, proximate to a keyhole. Upon accessing the illuminated rocker switch, a homeowner can actuate it to provide the additional illumination provided by an incandescent lamp, with which to better see the keyhole. A housing and circuit terminals contain the operational components of the device. An incandescent lamp provides means for illuminating the rocker switch on a continual basis. The incandescent lamp operably engages a control element, ultimately engaging an existing door bell transformer. As such transformers output low voltage, the current conveyed therefrom enables the incandescent lamp to illuminate the rocker switch on an ongoing basis, at a minimal power consumption. A second incandescent lamp provides further illumination for a homeowner accessing a keyhole. Actuating illuminated rocker switch enables completion of the circuit to illuminate the second incandescent lamp. The radiant energy generated by the incandescent lamp shines through a translucent screen in a cover plate to illuminate the area surrounding a keyhole.
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Husar Stephen F.
Litman Richard C.
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