Wax shell imitation candle with improved resistance to cracking

Details Wax shell imitation candle with improved resistance to cracking Wax shell imitation candle with improved resistance to cracking

2006-10-10

2006-10-10

Luebke, Renee (Department: 2875)

Illumination

Self powered lamp

Nonelectric

Reexamination Certificate

active

07118243

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.

REFERENCES:
patent: 3761702 (1973-09-01), Andeweg
patent: 3890085 (1975-06-01), Andeweg
patent: 5597300 (1997-01-01), Wohl et al.
patent: 6375455 (2002-04-01), Frandsen et al.
patent: 6491517 (2002-12-01), Freeman et al.
patent: 6544303 (2003-04-01), Calzada
patent: 6616308 (2003-09-01), Jensen et al.
patent: 6966665 (2005-11-01), Limburg et al.
patent: WO 03/016783 (2003-02-01), None

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