Industrial electric heating furnaces – Resistance furnace device – With heating element detail
Patent
1981-08-17
1984-12-04
Envall, Jr., Roy N.
Industrial electric heating furnaces
Resistance furnace device
With heating element detail
373137, F27D 100, F27D 1102
Patent
active
044868880
ABSTRACT:
A furnace includes a jacket (1) which is removably mounted to a bottom plate construction (2) so that the jacket can be mounted on any one of a number of the bottom plate constructions. A cap (3) is removably secured on an upper part of the jacket by latches (4), and electric resistance elements (16, 22) are mounted adjacent to an inner surface of the jacket by a plurality of strips (14) having pins (15) thereon. Since the jacket is removably mounted on the bottom plate construction, after a burning process has been completed, the jacket can be removed from the bottom plate construction and placed on another similar bottom plate construction to initiate another burning process while the products which have been previously burned are allowed to cool. In the event that quick cooling of the products is not desirable, the cap may be removed and replaced by a simple, intermediate cap so that the products are allowed to cool more slowly.
REFERENCES:
patent: 3350493 (1967-10-01), Randall
patent: 3786162 (1974-01-01), Colson
patent: 4088825 (1978-05-01), Carr
patent: 4154975 (1979-05-01), Sauder
patent: 4215265 (1980-07-01), White
patent: 4249888 (1981-02-01), Werych
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