Fire extinguishing system for aircraft

Details Fire extinguishing system for aircraft Fire extinguishing system for aircraft

1981-02-09

1982-09-07

Rolla, Joseph J.

Fire extinguishers

Special applications

For vehicles

169 57, 49 1, A62C 3512

Patent

active

043479014

ABSTRACT:
A heat responsive fire extinguishing system is disclosed which includes a delivery tube, supported relative to and about the ceiling of a passenger compartment, for example, of an aircraft or other vehicle such as a boat. The delivery tube includes a plurality of spaced apart normally plugged openings directed at all areas within the compartment, the plugs being formed of a suitable material having relatively low fushion points, and wherein a flexible tensioned trigger line sensor operable by the existence of an above normal ambient temperature to, first, actuate an electric switch to permit the oxygen masks above the aircraft seats to drop and, second, to operate a time delay switch by means of the opening of the oxygen mask compartment door or otherwise to permit the positioning of the masks relative to the passengers faces, prior to the opening of a valve to direct a flow of a suitable pressurized fire extinguishing material into the delivery tube, wherein the plugs, exposed to the above normal ambient temperature, will be softened and blown out of the tube holes by the pressure forces of the fire extinguishing material in the tubes, to discharge the material outwardly through the holes to supress or extinguish any surrounding flames.

REFERENCES:
patent: 1575126 (1926-03-01), Peterman
patent: 2566235 (1951-08-01), Mathisen

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