US PATENT SUBCLASS 432 / 195
.~.~ Hearth-type or tank-type furnace

Current as of: June, 1999
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432 /   HD   HEATING

120  DF  WORK CHAMBER HAVING HEATING MEANS {12}
159  DF  .~ Combustion products heat work by contact {19}
195.~.~ Hearth-type or tank-type furnace

DEFINITION

Classification: 432/195

(under subclass 159) Apparatus in which the charge rests on the bottom of the furnace and is heated by hot gases passing over it; the bottom of the furnace serving to collect or hold molten material.