Refrigeration – Structural installation – With evaporative type cooler
Patent
1976-02-23
1977-07-05
King, Lloyd L.
Refrigeration
Structural installation
With evaporative type cooler
62331, 169 19, F25D 2312, F25D 1500, F25D 2312, A62C 3706
Patent
active
040337405
ABSTRACT:
An improved combined environmental control and fire protection system for a building is disclosed. Water is circulated from cooling apparatus including a closed circuit cooling tower and, when necessary, refrigeration apparatus through supply lines to air handling indirect heat exchangers, lighting fixtures and other heat sources for absorbing heat. The water then circulates through return lines to the cooling apparatus. Automatic sprinkler heads are connected to at least the return lines for fire protection. A pressure sensor detects any drop in water pressure in the circulating system caused by the opening of one or more sprinkler heads and switches the system to a fire protection mode. The pressure sensor opens a valve to connect a pressurized water supply tank to the sprinkler heads. Check valves and motorized valves controlled by the pressure sensor protect the heat exchangers, lighting fixtures and other heat sources from high pressures when the system is operating in a fire protection mode.
REFERENCES:
patent: 2721449 (1955-10-01), Dennick
patent: 2796740 (1957-06-01), McFarlan
patent: 3169382 (1965-02-01), Brown
patent: 3490517 (1970-01-01), Meckler
patent: 3939914 (1976-02-01), Carroll
Gershon Meckler Associates
King Lloyd L.
Todd, Jr. Oliver E.
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