Portable fire alarm

Signals and indicators – Alarms – Thermal

Patent

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Details

116112, 222 39, G08B 1700

Patent

active

040221482

ABSTRACT:
A self-contained fire alarm is described that is activated by a temperature-sensitive release mechanism. The alarm is a simple inexpensive device that requires minimal maintenance and is independent of any electrical power source.

REFERENCES:
patent: 1844056 (1932-02-01), Bronander
patent: 1955086 (1934-04-01), Pallotta
patent: 2034179 (1936-03-01), Franklin
patent: 2362423 (1944-11-01), Walsh
patent: 2626586 (1953-01-01), Mendes
patent: 2777416 (1957-01-01), Messick
patent: 2938493 (1960-05-01), Pratt
patent: 3547201 (1970-12-01), Balmes, Sr.
patent: 3667419 (1972-06-01), Sullivan
patent: 3785334 (1974-01-01), Waldeck
patent: 3897828 (1975-08-01), Glover
patent: 3931785 (1976-01-01), Keeley et al.

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