Automatic temperature and humidity regulation – Ventilator type
Patent
1982-11-10
1984-08-28
Tapolcai, William E.
Automatic temperature and humidity regulation
Ventilator type
236 51, 236 80R, F24F 706
Patent
active
044679564
ABSTRACT:
A system for supplying conditioned air through a duct to an area to be treated by the conditioned air, the system having an area thermostat that tends to maintain the temperature of the area at a selected set point temperature of the thermostat. The thermostat provides a signal in relation to the temperature sensed by the thermostat. A damper unit is provided for controlling the flow of air from the duct to the area. A controller that is non-readily accessible in the area and is remote from the thermostat directs a signal to the damper unit to operate the same in relation to the value of the signal of the thermostat and in relation to the air pressure in the duct to compensate for pressure changes originating elsewhere in the system whereby the controller tends to maintain the air flow to the area at the rate called for by the signal of the thermostat regardless of the air pressure in the duct. Adjustable maximum and minimum air flow rate setting devices are provided for selecting the air flow rate range of the air flow from the duct to the area under the control of the controller. The adjustable maximum and minimum air flow rate setting devices are remote from the controller and are readily accessible in the area while being operatively associated with the thermostat to select the range of the signal thereof and, thus, the range of the rate of the air flow from the duct.
REFERENCES:
patent: 3719321 (1973-03-01), McNabney
patent: 3941310 (1976-03-01), Travaglio et al.
patent: 4077567 (1978-03-01), Ginn et al.
patent: 4147298 (1979-04-01), Leemhuis
patent: 4263931 (1981-04-01), Bramow et al.
patent: 4264035 (1981-04-01), Maxson et al.
patent: 4428529 (1984-01-01), Bentsen
Admitted Prior Art System for Supplying Conditioned Air as Shown in FIG. 1 of This Application.
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