Signals and indicators – Alarms – Thermal
Patent
1975-09-22
1977-05-10
Queisser, Richard C.
Signals and indicators
Alarms
Thermal
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.
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patent: 3785334 (1974-01-01), Waldeck
patent: 3897828 (1975-08-01), Glover
patent: 3931785 (1976-01-01), Keeley et al.
Hicks Richard J.
Queisser Richard C.
Yasich Daniel M.
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