Fire extinguishing system
OwnerJames W. Walden, Jimmy E. Maloneinventors
Life of this patent
Estimating the term…
Abstract
An automatic fire extinguishing system for ranges having top burners, including a hood, mountable over the range, tanks containing fire extinguishing fluids remotely located from the hood, solenoid operated valves connected in circuit with heat sensors and power lines to discharge fluid from the tanks when the heat sensors are operated. The range may have electric or gas burners. A solenoid operated switch or solenoid operated valve is connected in circuit with the heat sensors to open the power line to the electrical burners or to open the gas main to the gas burners when the heat sensors operate. An automatically operated exhaust fan and audible alarms are also provided. The system includes manually operable set and reset switch means.
Claims9
An automatic fire extinguishing system for a range having top burners comprising:
- (a) a hood mountable over said range, said hood having a closed top, vertical side walls and an open bottom;
- (b) at least one tank containing fire extinguishing material disposed remotely from said hood and in fluid communication with spray means mounted in the open bottom of said hood;
- (c) a solenoid operated valve on said tank for selectively releasing said fire extinguishing material when said solenoid is first energized;
- (d) at least one heat sensing means activated at a pre-determined temperature and provided in said hood for sensing the temperature of a fire located between said range and said hood;
- (e) a source of electric power;
- (f) circuit means interconnecting said heat sensing means, said solenoid and said source of power for actuating said valve when said heat sensing means first activate upon the occurrence of a fire located between said range and said hood;
- (g) first relay means provided in said circuit intermediate said source of power and said solenoid for energizing said solenoid and maintaining said solenoid energized regardless of the temperature sensed by said heat sensing means after said heat sensing means are once activated;
- and,
- (h) timer means in said circuit intermediate said heat sensing means and said first relay means for selectively delaying the energization of said solenoid.
Dependencies are inferred from the claim text.