Thermostat for stoves
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 18, 1983
Issued Date -
N/A
app pub date -
Sep 2, 1980
filing date -
Jul 25, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A thermostat for a stove is disclosed. The thermal control unit is contained in a housing which has an aperture formed therein and includes a thermal control unit for detecting changes in the temperature of the stove. A flap is secured to the housing and is rotatable across the aperture so as to cover the aperture to any desired degree. The thermal control unit controls the position of the flap to control the effective area of the aperture, thereby to control the amount of air supplied to the stove. The thermal control unit, the flap and the aperture cooperate to ensure that the effective area of the aperture changes by an amount approximately proportional to the square of the magnitude of any change in the stove temperature detected by the thermal control unit. The thermal control unit may preferably comprise a bimetallic coil or a liquid expansion thermometer. At least one edge of the flap, or at least one edge of the aperture, or at least one edge of each is curved in such a manner as to produce the desired change in area, in cooperation with the thermal control unit, responsive to stove temperature changes.
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