Electric smoke generator

Details Electric smoke generator Electric smoke generator

1985-10-22

1988-08-16

Bartis, Anthony

Electric heating

Heating devices

Resistive element: igniter type

219273, 219275, 219300, 219308, 219505, 239136, 261142, H05B 102, H05B 342, B01J 1300, F22B 128

Patent

active

047646608

ABSTRACT:
A high output smoke generator suitable for use as a portable apparatus emys a thin-walled metal conduit as a resistance heater coil which also doubles as a thermal sensor. A balance bridge controller using the coil as one leg in the bridge network, is electrically coupled to provide current to the resistance heater coil for maintaining the coil at a predetermined temperature. A thermocouple used for calibration is electrically isolated from the coil by a beryllium oxide disk. Also, disclosed are a fluid reservoir and pump to provide smoke generating fluid to the coil after an adjustable time delay from startup, and a timer to shutdown operation after a preselected period.

REFERENCES:
patent: 1190167 (1916-07-01), Hill
patent: 2882240 (1959-04-01), Charwat
patent: 3234357 (1966-02-01), Seuthe
patent: 3250723 (1966-05-01), Fortney
patent: 3780250 (1973-12-01), Ando
patent: 3851146 (1974-11-01), Bennett
patent: 3990987 (1976-11-01), Rogers
patent: 4326119 (1982-04-01), Swiatosz
patent: 4349723 (1982-09-01), Swiatosz
patent: 4477395 (1984-10-01), Albarda
patent: 4547656 (1985-10-01), Swiatosz et al.
patent: 4568820 (1986-02-01), Swiatosz

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