Smoke alarm with high and low pitched tones

Details Smoke alarm with high and low pitched tones Smoke alarm with high and low pitched tones

1996-02-06

1998-03-10

Hofsass, Jeffery

Communications: electrical

Condition responsive indicating system

Specific condition

340328, 34038472, 340692, G08B 1710

Patent

active

057266344

ABSTRACT:
A smoke alarm with high and low pitched tones including a conventional smoke detector adapted to activate upon the detection of smoke associated with fire. A first high tone buzzer is included for emitting a high pitched tone upon activation of the smoke detector. A second low tone buzzer is included for emitting a low pitched tone upon the activation of the smoke detector. The first buzzer and second buzzers are adapted to allow the emitted tone thereof to be adjusted thus affording persons with hearing disabilities warning of the presence of fire.

REFERENCES:
patent: 3860919 (1975-01-01), Aker
patent: 4303908 (1981-12-01), Enemark et al.
patent: 4335379 (1982-06-01), Martin
patent: 5570077 (1996-10-01), Swieboda

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