Melodic candle assembly

Details Melodic candle assembly Melodic candle assembly

1990-10-01

1991-05-14

Dority, Carroll B.

Combustion

Combined

431289, F23D 316

Patent

active

050151754

ABSTRACT:
A melodic candle assembly having a generally cylindrical wax body seated in the top of a tubular base. The wax body has an axial wick. Adjacent the wick is a thermoresponsive member comprising a thin piezoelectric strip with metal films on opposite sides thereof which serve as electrodes. An electronic circuit in the base has an integrated circuit comprising a memory stage containing prerecorded signals representing audible sounds. A loudspeaker in circuit with the memory stage reproduces the audible sounds when activated. The thermoresponsive member is connected to the electronic circuit and applies thereto a piezoelectrically generated voltage when the candle is ignited to thereby trigger the memory stage and activate the loudspeaker. When the candle flame is extinguished, the audible sounds are stopped.

REFERENCES:
patent: 4477249 (1984-10-01), Ruzek et al.
patent: 4568269 (1986-02-01), Lin
patent: 4804323 (1989-02-01), Kim

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