Clock having emergency lighting device

Details Clock having emergency lighting device Clock having emergency lighting device

1998-06-04

1999-03-16

Roskoski, Bernard

Horology: time measuring systems or devices

Combined with disparate device

368 67, 368227, G04B 4700, G04B 1930

Patent

active

058838627

ABSTRACT:
A clock is provided with an emergency lighting device which is composed of an electronic control apparatus, at least one light bulb, a battery, a plug, and a switch knob. The light bulb is located in a concave slot of the dial plate of the clock such that light bulb does not obstruct the movements of the second hand, the minute hand and the hour hand of the clock. The emergency lighting device is housed in the case of the clock. When a power outage takes place, the electronic control apparatus is triggered to turn on the light bulb.

REFERENCES:
patent: 3899871 (1975-08-01), Kitai
patent: 4611200 (1986-09-01), Stilwell
patent: 4949077 (1990-08-01), Mbuthia
patent: 4972394 (1990-11-01), DiMarco
patent: 5012507 (1991-04-01), Leighton

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