COMBUSTION DEVICE HAVING DOUBLE-LAYER STRUCTURE
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United States of America Patent
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Issued Date -
Aug 27, 2020
app pub date -
May 29, 2019
filing date -
Feb 26, 2019
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Abstract
A combustion device having a double-layer structure includes a main body, which is double layered, including an inner-layer wall and an outer-layer wall disposed outside of and spaced from the inner-layer wall such that the inner-layer wall and the outer-layer wall include a hollow disposed therebetween. The inner-layer wall forms a fuel receptacle with an opening. A wick has an end defining fuel-drawing end inserted into the fuel receptacle through the opening.
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