Electrical heating apparatus protected against an overheating condition
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United States of America Patent
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Mar 18, 1986
Grant Date -
N/A
app pub date -
Oct 5, 1983
filing date -
Oct 5, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An electrical heating apparatus protected against an overheating condition is disclosed. It includes an electrical heater and an elongate heat sensor disposed in a thermally responsive relationship. The heat sensor consists of a single conductor having positive temperature coefficient electrical impedance characteristics continuously along its entire length. The electricity flowing through the electrical heater is controlled in response to a signal from the heat sensitive conductor.
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