Gas combustion apparatus
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United States of America Patent
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Jun 23, 1998
Grant Date -
N/A
app pub date -
Aug 29, 1996
filing date -
Nov 15, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A gas combustion apparatus comprises a burner, a thermal electric power generation element that uses the burner's combustion to produce a thermoelectromotive force, a voltage boosting circuit that raises the voltage of the thermoelectromotive force by the oscillation of an oscillation unit and a storage battery that is charged by the voltage-increased thermoelectromotive force. The oscillation unit consists of free running multivibrators and oscillates in dependence on the resistance of a positive temperature coefficient thermistor. If the positive temperature coefficient thermistor reaches a prescribed temperature or shorts out and fails, its resistance value changes and the oscillator unit stops its oscillation, whereby in the voltage boosting circuit the voltage rise stops, and electromagnetic safety valve closes.
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