HEATING DEVICE WITH ADJUSTING ELECTRICAL CONTACT
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United States of America Patent
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Issued Date -
Dec 25, 2008
app pub date -
Jun 25, 2007
filing date -
Jun 25, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An electrical heating device is disclosed that is suitable to vaporize air treatment chemicals from an impregnated substrate. The device is provided with a PCT heater held between electrical contacts and a spring that is compressed between the housing of the heating device and one of the electrical contacts to maintain pressure thereon in spite of thermal expansion of the housing, ensuring good electrical contact between the PCT heater and the electrical contacts.
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