Candle device

Details Candle device Candle device

1989-05-25

1991-10-15

Price, Carl D.

Combustion

Combined

431289, 84 2, 84171, F23D 302

Patent

active

050570056

ABSTRACT:
A candle device comprises a wax body which is urged upwardly by a spring against a thermally-insulating cover. A wick projects through an aperture in the cover, and wires conduct heat from the candle flame to melt wax beneath the cover. A music generator in the form of an integrated circuit and a speaker is triggerable by a sensor to play music while the candle is burning. The sensor may take the form of a temperature-sensitive resistor, a photocell or a bimetallic switch. Other forms utilize a thermally-conducting wire to conduct heat from the candle flame to expand air in a container to operate a mechanical switch. Also disclosed is a time delay switch in the form of a tube of porous material. Water is absorbed along the tube and changes the capacitance between pairs of plates, each pair activating the integrated circuit to play a respective tune.

REFERENCES:
patent: 3762857 (1973-10-01), Andeweg
patent: 4234303 (1980-11-01), Neugart
patent: 4477249 (1984-10-01), Ruzek et al.
patent: 4568269 (1986-02-01), Lin
patent: 4797088 (1989-01-01), Nakamura et al.
patent: 4804323 (1989-02-01), Kim

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