Roofing shingle mineral filler heater

Heating – Work chamber having heating means – Combustion products heat work by contact

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Details

1263435A, 432 95, 432177, F27D 108, F27D 1700

Patent

active

040322882

ABSTRACT:
A mineral filler heater assembly for heating mineral filler by directing hot discharge gases from a regenerating system or a thermal oxidizer in heat exchange relation to the mineral filler, and including fluid fuel burners connected to maintain the temperature of the discharge gases above a predetermined minimum, the regenerating system including a modulating damper assembly responsive to the pressure of the discharge gases at the entrance to the heater to control the amount of recycled gases.

REFERENCES:
patent: 1147706 (1915-07-01), Clymer
patent: 2202090 (1940-05-01), Colbert
patent: 2518490 (1950-08-01), Parry
patent: 3071358 (1963-01-01), Blaha
patent: 3163888 (1965-01-01), Shattuck
patent: 3954391 (1976-05-01), Gottlieb

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