Temperature controlled timer
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United States of America Patent
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-
Mar 29, 1983
Grant Date -
N/A
app pub date -
Dec 29, 1980
filing date -
Apr 24, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A temperature controlled timer useful for controlling the application of power to apparatus such as automobile block heaters or the like. In one embodiment the time of application of power prior to a shut off time is decreased with increasing ambient temperature. In another embodiment the duty cycle of cyclically applied power is changed so that the power on period becomes shorter and the power off period becomes longer with increasing ambient temperature. Significant conservation of power results.
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