Fire alarm heat sensor

Details Fire alarm heat sensor Fire alarm heat sensor

1979-05-04

1981-05-05

Yasich, Daniel M.

Signals and indicators

Alarms

Thermal

169 42, 222 39, B67D 532, G01K 1106, G08B 1700

Patent

active

042651948

ABSTRACT:
A heat sensor is provided having a support member, an actuating member mounted pivotally therewith by a spring operatively engaging, in tensioned condition, a portion of the support member and the actuating member, and a member fabricated of two separable portions each bound to the other by fusible material which when fused at a predetermined temperature permits the two separable portions to be released, thus activating the heat sensor. It is also contemplated that the heat sensor operate in conjunction with a canister of compressed gas and a horn which are operatively associated with the heat sensor to sound an alarm when the heat sensor is activated.

REFERENCES:
patent: 2431110 (1947-11-01), Clair
patent: 3044555 (1962-07-01), Allen
patent: 3192890 (1965-07-01), Smith
patent: 3244137 (1966-04-01), Garvey
patent: 3530817 (1970-09-01), Garvey
patent: 3667419 (1972-06-01), Sullivan
patent: 4052690 (1977-10-01), Jacoby
patent: 4121533 (1978-10-01), Pappas et al.

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