Electric warming blanket having optimized temperature zones
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United States of America Patent
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Dec 14, 2010
Grant Date -
Mar 29, 2007
app pub date -
Sep 29, 2006
filing date -
Sep 29, 2005
priority date (Note) -
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Abstract
An electric heating blanket system includes a flexible sheet-like heating element having a substantially uniform watt density output across a surface area thereof, when the heating element is electrically powered. A temperature sensor is coupled to the heating element at a location where the heating element will be in conductive contact with a body when the blanket is draped over the body. The system further includes a temperature controller coupled to the temperature sensor, and an electric power source coupled to the heating element and to the temperature controller, the power source being controlled to provide the watt density output for the heating element according to a temperature sensed by the sensor.
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