US PATENT SUBCLASS 202 / 253
.~.~.~.~ Cooling or quenching

Current as of: June, 1999
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202 /   HD   DISTILLATION: APPARATUS

81  DF  APPARATUS {4}
239  DF  .~ Elements {10}
242  DF  .~.~ Closures {5}
252  DF  .~.~.~ Bottom {1}
253.~.~.~.~ Cooling or quenching

DEFINITION

Classification: 202/253

The closure has means for cooling or quenching the residue before discharging it from the retort.

SEE OR SEARCH CLASS

239, Fluid Sprinkling, Spraying, and Diffusing,

750+, for devices disclosed as useful for moving coke through a fluid treating zone for quenching the coke.

266, Metallurgical Apparatus,

197, for shaft furnaces having specific bottom structure.