Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1997-11-17
1999-06-08
Swann, Glen
Communications: electrical
Condition responsive indicating system
Specific condition
2 8, 2 69, 340521, 340522, 340540, 340626, G08B 2100
Patent
active
059107715
ABSTRACT:
The system is adapted to receive input signals relating to the pressure in a firefighter's breathing system as well as ambient temperature and motion of the firefighter. An audible alarm is activated to indicate a potential emergency situation relating to low remaining air time, impending thermal breakthrough or lack of motion of the firefighter.
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patent: 5157378 (1992-10-01), Stumberg et al.
patent: 5689234 (1997-11-01), Stumberg et al.
patent: 5781118 (1998-07-01), Wise et al.
Fulton James A.
Stumberg L. Herbert
North-South Corporation
Swann Glen
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