Electric heating – Metal heating – Of cylinders
Patent
1977-02-25
1979-01-02
Truhe, J. V.
Electric heating
Metal heating
Of cylinders
126 21A, 219400, H05B 906
Patent
active
041328787
ABSTRACT:
In a high-frequency energy apparatus, a heat generating element is disposed on a ventilation path of the high-frequency energy apparatus, which path is channeled through a heating chamber. When the heating time is automatically controlled, external air is introduced into the heating chamber, and when the heating time is manually controlled by such a means as a timer, on the other hand, hot air which has been heated by the heat generating element is introduced into the heating chamber so that the deposition of dew on the wall of heating chamber and the obscuring of a viewing panel of the heating chamber due to moisture may be prevented.
REFERENCES:
patent: 3185809 (1965-05-01), Bohm et al.
patent: 3281568 (1966-10-01), Haagensen
patent: 3407279 (1968-10-01), Greenberg
patent: 3681557 (1972-08-01), Suzuki et al.
patent: 3783219 (1974-01-01), Tateda
patent: 3829649 (1974-08-01), Igarashi
Satoh Kenji
Tachikawa Hajime
Watanabe Mitsuru
Hitachi Heating Appliances Co., Ltd.
Roskoski Bernard
Truhe J. V.
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