Heating – Work chamber having heating means – Having means by which work is progressed or moved mechanically
Patent
1988-06-15
1989-05-16
Yuen, Henry C.
Heating
Work chamber having heating means
Having means by which work is progressed or moved mechanically
432175, 432176, 432152, F27B 322
Patent
active
048306100
ABSTRACT:
A fuel fired heat treating furnace having an imperforate inner shell for containing a work load in isolation. The shell is made of a refractory material which provides a good heat exchange from the outside to the inside. A multiplicity of hot gas streams is directed under pressure against the outside of the shell by means of a circulation system which includes a plenum, a fan within the plenum and a plurality of apertured distributor tubes extending from one end of the shell to the other. Fuel burners exhaust combustion gases into the system on the discharge side of the fan where the gases mix with returning gases from the intake side of the fan and are fed into the distributor tubes.
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Columbia Gas Service System Corporation
Mensing Harold F.
Yuen Henry C.
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