Electric heating – Metal heating – By arc
Patent
1995-07-05
1997-09-23
Paschall, Mark H.
Electric heating
Metal heating
By arc
21912158, 21912159, 21912136, 219700, 414218, B23K 1000
Patent
active
056700652
ABSTRACT:
"An apparatus for plasma treating fine-grained materials, having a receptacle that can be evacuated and that accepts and agitates the materials to be treated, and having an electromagnetic device that comprises an excitation device and electrodes and to activate a process gas filling the space of the receptacle means to form a plasma, wherein the receptacle has a conveyor which conveys the material from one end to another end and is configured for continuous admission and discharge of the material and admission and discharge of the process gas, but that is otherwise hermetically closed, and at which or in which the electromagnetic excitation device that effects the plasma formation within the conveyor is arranged."
REFERENCES:
patent: 4423303 (1983-12-01), Hirose et al.
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patent: 4859493 (1989-08-01), Lemelson
patent: 5283119 (1994-02-01), Shuttleworth et al.
patent: 5328515 (1994-07-01), Chovan et al.
patent: 5409543 (1995-04-01), Panitz et al.
patent: 5425611 (1995-06-01), Hughes et al.
English language Abstract of DE-A-1 41 41 805 from Derwent WPI database. Acc No. 93-206131/26.
Bickmann Herrmann
Nauenburg Klaus
Weichart Juergen
Buck Werke GmbH & Co.
Paschall Mark H.
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