Underfired kettle

Details Underfired kettle Underfired kettle

1989-03-08

1990-03-06

Yeung, James C.

Stoves and furnaces

Melting furnaces

431354, E01C 1945, F24H 100

Patent

active

049056638

ABSTRACT:
An underfired kettle for heating rubberized asphalt comprising a concave material container for containing rubberized asphalt, an outer container spaced from and closed to the outside convex wall of the material container, a sinuous tube contained between the material container and outer container passing adjacent the major surface area of the material container, one end of the tube being ported through the outer container, the tube containing spaced orifices in its sides along the length of its sides, and means for passing a burning gas into the port through the tube for heating air within the tube, whereby the air and exhaust of the burning gas can pass through the orifices and into the space between the material container and outer container, thereby heating a major portion of the material container and rubberized asphalt contained therein.

REFERENCES:
patent: 1709016 (1929-04-01), Hendricks
patent: 1855961 (1932-04-01), Hargrave
patent: 3837789 (1974-09-01), Schindler

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