US PATENT SUBCLASS 432 / 84
.~.~ Combustion feed material cools wall

Current as of: June, 1999
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432 /   HD   HEATING

77  DF  WITH WORK COOLING STRUCTURE {5}
83  DF  .~ Work heat removed through heat transmitting wall {1}
84.~.~ Combustion feed material cools wall

DEFINITION

Classification: 432/84

(under subclass 83) Apparatus in which the cooling medium held separate from the work in the work cool-down zone is oxidizer or fuel on its way to a work heating combustion device.