Portable heating device
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United States of America Patent
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-
Nov 2, 1999
Issued Date -
N/A
app pub date -
Feb 24, 1999
filing date -
Mar 6, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A portable heating device includes a reservoir having a lid which closes the reservoir during heating. A heat plenum assembly is provided having a firebox disposed underneath the reservoir. The firebox communicates with a burner tube for introducing heat to the lower surface of the reservoir. Tertiary heating of the side walls of the reservoir are provided, as well as heating along the length of the reservoir bottom surface. A deflector at one end of the passage way improves the distribution of tertiary heat by directing heat within the passage way towards each of the corners of the reservoir. A convective air curtain is provided by a doubled walled outer lining which encloses the heat plenum and reservoir. Efficient heat transfer is accomplished between the firebox and reservoir while maintaining the outer surface cool to the touch.
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