Sound producing candle

Details Sound producing candle Sound producing candle

1998-10-13

2000-06-13

Dority, Carroll

Combustion

Combined

431289, F23D 302

Patent

active

060741996

ABSTRACT:
The candle has a wick that contains a signal transmission means such as an optical guide or thermocouple. An electronic circuit is coupled to the transmission means so that when a light or heat signature is received by the circuit, it plays a sound stored in a memory. For example, an optical guide can be coupled to an optical switch, so that the optical signal produced by the flame will close the switch and complete a circuit. The circuit can include a storage device, such as an IC CHIP, to store a musical tune. This tune is then played when the candle is lit. When the flame is extinguished, the burnt wick along with the wavelength sensitive optical switches will prevent ambient light from activating the circuit. Likewise, if a thermocouple is used, the absence of a flame will discontiue the production of sound.

REFERENCES:
patent: 2291067 (1942-07-01), Atkins
patent: 3917441 (1975-11-01), Gray
patent: 4477249 (1984-10-01), Ruzek et al.
patent: 4568269 (1986-02-01), Lin
patent: 5363590 (1994-11-01), Lee

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