Electric heating – Metal heating – By arc
Patent
1981-05-05
1983-12-27
Paschall, M. H.
Electric heating
Metal heating
By arc
219121PM, 219121PX, 219 1055A, 219121PG, 204164, 31511121, 373 18, B23K 900, B23K 9225
Patent
active
044233035
ABSTRACT:
The apparatus includes a microwave generating device and, a waveguide connected with the microwave generating device. A reaction vessel disposed through the waveguide and supplied with a powdery material to be treated with a reaction gas. Pumps are provided for exhausting the reaction vessel. The reaction vessel comprises a vertically elongated vessel having a bottom above which a plasma generating area is formed. In one embodiment, the reaction vessel further comprises a bottom plate horizontally supported in the reaction tube and connected so as to be vertically slidable within the reaction tube.
REFERENCES:
patent: 3834038 (1974-09-01), Jarda
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patent: 4065369 (1979-12-01), Ogawa et al.
patent: 4090055 (0000-01-01), King
patent: 4153527 (1979-05-01), Greenwald, Jr.
patent: 4207452 (1980-06-01), Arai
patent: 4339326 (1982-07-01), Hirose et al.
Chemicals Abstracts, vol. 69, 1968, p. 8360, col. 2, "Plasma Jet in the Production of Nitrides".
"Microwave Beam Roaster", Hamid et al, Journal of Microwave Power, Copywright 1975, pp. 109-114.
Hirose Masahiko
Nishida Katsutoshi
Paschall M. H.
Tokyo Shibaura Denki Kabushiki Kaisha
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