Environmental control system

Details Environmental control system Environmental control system

1984-02-28

1985-08-20

Tanner, Harry B.

Refrigeration

Automatic control

Gas-liquid contact cooler, fluid flow

236 49, 165 26, F28D 300

Patent

active

045356017

ABSTRACT:
An environmental control system utilizing a single moisture and dust impervious temperature probe of a multistage thermostat to both control a fogging system in a hog house or the like and other temperature altering devices such as an adjustable ventilation system, fans, heaters and the like. In a cooling cycle of operation, when the sensed temperature rises to a first preselected level, one of the stages causes actuation of one of the temperature cooling apparatus. If the temperature continues to rise to another excessively higher preselected temperature, another stage causes actuation of the fogging system. When the sensed temperature then drops by a preselected amount, the fogging system is deactuated. The actuation and deactuation temperatures are selectively variable to minimize excessive fogging. In the heating cycle of operation, heating devices are suitably controlled in accordance with temperatures.

REFERENCES:
patent: 3238338 (1966-03-01), Nelson
patent: 3616846 (1971-11-01), Wills
patent: 4178764 (1979-12-01), Rowe
patent: 4270362 (1981-06-01), Lancia et al.

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