Heat exchange – Movable heating or cooling surface – Rotary drum
Patent
1979-02-26
1981-06-02
Davis, Albert W.
Heat exchange
Movable heating or cooling surface
Rotary drum
165 29, 236 1EA, 236 68B, 62202, F25B 2900
Patent
active
042705975
ABSTRACT:
A thermostat adapted to regulate the operation of a heating system and a cooling system in response to the temperature in a space conditioned by the systems. The thermostat has a pair of means selectively movable to respective ones of adjusted positions and adapted for sensing the temperature of the space within a preselected temperature range, respectively. A pair of sets of at least three switching means are associated with the sensing means and are operable for controlling the operation of the heating system and the cooling system, respectively. At least three means disposed in heat transfer relation with one of the sensing means are energized in response to the operation of the at least three switching means of one of the sets thereof for supplying anticipation heat to the one sensing means only during the operation of the heating system, respectively, the at least three anticipation heat supplying means being connected generally in star circuit relation with each other and respectively connected in series circuit relation with the at least three switch means.
An electrical circuit for a thermostat is also disclosed.
REFERENCES:
patent: 2978228 (1961-04-01), Carlson
patent: 3993120 (1976-11-01), Iberg et al.
patent: 4114681 (1978-09-01), Denny
patent: 4115751 (1978-09-01), Huizenga
Davis Albert W.
Focarino Margaret A.
General Electric Company
Papin Joseph E.
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