Lighting devices

Details Lighting devices Lighting devices

1975-10-01

1977-01-04

Caldwell, John W.

Communications: electrical

Systems

Call station

240 371, 339 34, 340253C, G08B 2100

Patent

active

040018032

ABSTRACT:
An emergency power failure indicator circuit and night light adapted for use as a portable flashlight having wall outlet insertion prongs which are extendable from the body of the unit with concurrent actuation of a brush-type switch paralleling an on-off switch in the circuitry of the emergency light in the indicator circuit, thereby rendering the unit more suitable to be carried about as a flashlight as well as ensuring operability of the emergency light under power failure conditions.

REFERENCES:
patent: 2863038 (1958-12-01), Lombardo
patent: 3458794 (1969-07-01), Bohnstedt et al.
patent: 3801974 (1974-04-01), Aitken

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