Thermal retention device with outer covering receiving a warmer and food to be heated
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United States of America Patent
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Dec 7, 1999
Issued Date -
N/A
app pub date -
Feb 25, 1998
filing date -
Feb 27, 1995
priority date (Note) -
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Abstract
A heat retention device in the form of a heating pad includes an electrically resistive coil contained within a volume. The coil terminates at an electric coupler which is external of the volume. A phase change material is contained within the volume in thermal conductivity with the resistive element.
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