Thermostatic control apparatus for operation between the heating

Details Thermostatic control apparatus for operation between the heating Thermostatic control apparatus for operation between the heating

1988-02-03

1988-10-04

Tanner, Harry B.

Automatic temperature and humidity regulation

Miscellaneous

Burner controls with automatic cutoff

236 78A, 165 26, 337340, 337373, G05D 2300, F25B 2900, H01H 3752

Patent

active

047750995

ABSTRACT:
There is disclosed a thermostat controlled apparatus which operates to control operation of a heating system and a cooling system in response to the temperature detected in a given environment. The thermostat has a pair of mercury switches which are coupled to a single bimetallic element which switches are inclined, one with respect to the other. The circuit configuration is such that one switch controls the heating operation while the other switch controls a cooling operation. Heating and cooling occurs within a predetermined range which is adjustable by means of the angular positions of the switches with respect to the bimetallic coil. In this manner one switch will control the heating operation and the other switch controls the cooling operation. There is an area between the setting of the thermostat wherein neither switch operates but during this mode a separate fan is energized to provide air circulation for the given environment.

REFERENCES:
patent: 3047273 (1962-07-01), Scarr, Jr.
patent: 3993120 (1976-11-01), Iberg et al.
patent: 4265299 (1981-05-01), Harnish
patent: 4270597 (1981-06-01), Denny
patent: 4445567 (1984-05-01), Nelson

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