Heating device for smoke generator

Details Heating device for smoke generator Heating device for smoke generator

2007-11-27

2007-11-27

Campbell, Thor S. (Department: 3742)

Electric resistance heating devices

Heating devices

Vaporizer

C392S399000, C392S400000

Reexamination Certificate

active

11277170

ABSTRACT:
A heating device for a smoke generator includes at least one heating rod and a vaporization tube. The vaporization tube includes a longitudinal passageway. The vaporization tube coils around the heating rod and includes an end connected to an outlet of a pump of a smoke generator. Preferably, the vaporization tube helically coils around the heating rod to form a coiling structure having at least one layer. Preferably, the vaporization tube includes a non-circular cross-section having at least one side in surface contact with a circumference of the heating rod.

REFERENCES:
patent: 1615166 (1927-01-01), Cowles
patent: 2576558 (1951-11-01), Bede
patent: 3990987 (1976-11-01), Rogers
patent: 4308636 (1982-01-01), Davis
patent: 4465922 (1984-08-01), Kolibas
patent: 4480172 (1984-10-01), Ciciliot et al.
patent: 4818843 (1989-04-01), Swiatosz
patent: 4871115 (1989-10-01), Hessey
patent: 5265318 (1993-11-01), Shero

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