Abstract This specification discloses a fire extinguishing system for use in a relatively small or large enclosure or building where goods are kept which might be damaged by the fire extinguishing medium. The invention is carried out by a dispensing device located at the center of the building which will dispense extinguishing medium to specific locations in the building, thus avoiding damage to goods in the areas where there is no fire. The dispensing device is directed by a mechanism on the dispenser and a number of fire sensing devices located at the several areas to be protected. One of the fire sensing devices is located in each sector of the enclosure that is to be protected. These fire sensing devices may be, for example, in the form of a switch actuated by a thermostat or a photo cell or any device sensitive to heat or light, which will actuate a radio transmitter. The signal from a transmitter can actuate a radio receiver which will in turn operate a motor or a direct wire controlled by a thermally actuated switching device, which will drive the nozzle to a position where it will direct its material to the area of the building where the fire has occurred.
A fire extinguishing system in combination with an area to be protected, said area being divided into a plurality of sectors, a fire extinguishing material dispensing device located substantially equidistant from said sectors, a fire sensing device in each said sector adapted to be actuated when a fire occurs in the particular sector, a follow-up means on said dispenser adapted to rotate said dispenser to direct said extinguishing medium to said sector having said fire, said fire sensing device comprises a radio transmitter located in each said sector, and said follow-up means comprises a radio receiver supported adjacent said dispenser, each said transmitter having a different frequency, a motor actuated by said radio receiver and sensitive to the frequency of said transmitter, said motor being adapted to be actuated by a signal of said frequency of said transmitter to direct said nozzle toward the said sector from which said signal is transmitted.
Claim 2
Dependent Claim
152 words
A fire extinguishing system in combination with an area to be protected, said area being divided into a plurality of sectors, a fire extinguishing material dispensing device located substantially equidistant from said sectors, a fire sensing device in each said sector adapted to be actuated when a fire occurs in the particular sector, a follow-up means on said dispenser adapted to rotate said dispenser to direct said extinguishing medium to said sector having said fire, said fire sensing device comprises a radio transmitter located in each said sector, and said follow-up means comprises a radio receiver supported adjacent said dispenser, each said transmitter having a different frequency, a motor actuated by said radio receiver and sensitive to the frequency of said transmitter, said motor being adapted to be actuated by a signal of said frequency of said transmitter to direct said nozzle toward the said sector from which said signal is transmitted.
Claim 3
Dependent Claim
35 words
The fire extinguishing system recited in claim 1 wherein said fire sensing devices further comprise fusible links disposed in each said sector for actuating said transmitter when a fire occurs in any of said sectors.
Claim 4
Dependent Claim
43 words
The fire extinguishing system recited in claim 1 wherein said fire sensing devices further comprise thermostats, one said thermostat being disposed in each said sector and connected to said radio transmitter whereby said transmitter is actuated when a fire occurs in said sector.