Wax shell imitation candle with improved resistance to cracking
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United States of America Patent
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Oct 10, 2006
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app pub date -
Mar 16, 2004
filing date -
Mar 16, 2004
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Abstract
An imitation candle having an exterior wax shell and an interior illumination source is structured to reduce cracking of the exterior wax shell by incorporating a bonding layer into a central cavity in the shell between the interior illumination source and the wax shell. The bonding layer terminates well spaced from terminal edges of the shell to transfer stress between the illumination source and the shell caused by differing coefficients of thermal expansion to points removed from edges of the shell to retard crack genesis.
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