Heating – Work feeding – agitating – discharging or conveying...
Patent
1981-05-08
1984-05-01
Camby, John J.
Heating
Work feeding, agitating, discharging or conveying...
373 79, 414211, 432197, F27D 300, F27B 1500
Patent
active
044458517
ABSTRACT:
The present invention relates to an apparatus and method for the continuous firing of green ceramic articles, such as capacitors. In accordance with the invention a mixture of articles to be fired and heat resistant particulate matter in selected proportions is caused to descend a heated tube defining a furnace. Articles and particulate material such as sand are continuously introduced at the upper end of the furnace and removed at the lower end, after a predetermined dwell time within the furnace to effect firing. Removal is effected by progressively advancing a conveyor which is in partial blocking condition of the lower end of the furnace across the lower end of said furnace whereby the mixture of sand and fired ceramic articles is removed at a selected rate which is a function of the speed of the conveyor, whereby the dwell time in the furnace is closely controlled.
REFERENCES:
patent: 539769 (1895-05-01), Garvin
patent: 1712132 (1929-05-01), Breyer et al.
patent: 2933796 (1960-04-01), Somogyi
patent: 2968551 (1961-01-01), North et al.
patent: 3415505 (1968-12-01), Cook
patent: 3585023 (1971-06-01), Vlnaty et al.
Rutt Truman C.
Scrantom Dehart G.
AVX Corporation
Camby John J.
Colvin Arthur B.
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