Heat alarm indicator

Details Heat alarm indicator Heat alarm indicator

1981-07-14

1983-09-20

Yasich, Daniel M.

Signals and indicators

Indicators

By smoke or odor

116 5, 116221, 169 23, 169 58, G08B 540, G08B 1700, A62C 3714

Patent

active

044049234

ABSTRACT:
A heat alarm for releasing a strong readily noticeable odor when subjected to heat above a preselected level. A glass container having an elongated breakable neck portion is filled with an odoriferous fluid. When the neck portion is broken, the fluid can escape from the container. The fluid upon contact with the atmosphere creates a strong odor the presence of which is immediately apparent to all persons within the surrounding area. A heat reactive member that bends upon being subjected to heat above a preselected level is arranged around the neck portion of the container. When this heat reactive member is subjected to heat above the preselected level, the member bends and breaks the neck portion of the container thereby enabling the fluid to escape.

REFERENCES:
patent: 2468369 (1949-04-01), Jones
patent: 2522020 (1950-09-01), Deyo
patent: 2698022 (1954-12-01), Fahnoe
patent: 2704127 (1955-03-01), Haessler
patent: 3241713 (1966-03-01), Clapp et al.
patent: 3820607 (1974-06-01), Miley

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