Emergency exit indicator

Details Emergency exit indicator Emergency exit indicator

1977-05-02

1979-04-03

Caldwell, Sr., John W.

Communications: electrical

Condition responsive indicating system

Specific condition

340326, 340332, 340371, G08B 1710, G08B 700

Patent

active

041480236

ABSTRACT:
An emergency exit indicator that will signal the location of an emergency exit by a high intensity smoke piercing light and audible alarm, becoming activated automatically when smoke reaches a predetermined level. This indicator is particularly useful in movie theatres, night clubs and similar places where it is necessary to utilize subdued exit lights that will not be distracting. In cases of emergency involving smoke, the emergency exit indicator of this invention becomes activated automatically, thereby emitting a powerful beam of light capable of piercing through substantial distances of dense smoke. However, when the indicator is not activated it will not cause a distraction.

REFERENCES:
patent: 3500368 (1970-03-01), Abe
patent: 3916404 (1975-10-01), Gouge

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