Heat sensing alarm ashtray

Details Heat sensing alarm ashtray Heat sensing alarm ashtray

1991-01-03

1992-07-21

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

340540, 340586, 340693, G08B 2100

Patent

active

051326680

ABSTRACT:
An ashtray provided with a heat sensing element, an IC plate and an amplifier for emitting an alarm sound when a cigarette supported on the ashtray has burned down close to the edge of the ashtray.

REFERENCES:
patent: 4094326 (1978-06-01), Newman
patent: 4119419 (1978-10-01), Passaro et al.
patent: 4428386 (1984-01-01), Alloway
patent: 4595905 (1986-06-01), May

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