Water spray fire protection for hoods over cooking units

Details Water spray fire protection for hoods over cooking units Water spray fire protection for hoods over cooking units

1980-11-18

1982-11-02

Rolla, Joseph J.

Fire extinguishers

Special applications

For cooking installation

169 23, 126299R, A62C 1324

Patent

active

043568700

ABSTRACT:
A water spray system applied directly to cooking units in a kitchen rather than to the ventilating duct for the cooking units. The system may be a wet system with water pressure maintained at spray nozzles which open in case of fire, or an open head, or dry, system controlled by thermostats and a solenoid water valve. Safeguards are provided against loss of water pressure, surges in the water supply line, flare ups after partial cooling of the thermostats, closing of a solenoid gas valve supplying gas burners in the cooking units as a result of momentary outages in the electric service supplying the control circuits, and other contingencies.

REFERENCES:
patent: 3207058 (1965-09-01), Gaylord
patent: 3653443 (1972-04-01), Dockery
patent: 3772499 (1973-11-01), Fritzsche
patent: 3785124 (1974-01-01), Gaylord
patent: 3866687 (1975-02-01), Banner
patent: 3993138 (1976-11-01), Stevens et al.
patent: 4027302 (1977-05-01), Healey et al.

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