US PATENT SUBCLASS 422 / 289
.~.~.~.~ And direct contact heating fluid means within separating or dissolving chamber vessel

Current as of: June, 1999
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422 /   HD   CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING

243  DF  PHYSICAL TYPE APPARATUS {8}
255  DF  .~ Means separating or dissolving a material constituent {3}
285  DF  .~.~ And heating means {2}
288  DF  .~.~.~ Including means removing vapor from treated material {2}
289.~.~.~.~ And direct contact heating fluid means within separating or dissolving chamber vessel

DEFINITION

Classification: 422/289

And direct contact heating fluid means within separating or dissolving chamber vessel:

(under subclass 288) Apparatus having means for directly contacting a heating fluid with the material being treated, the means being located within the chamber in which separation or dissolution occurs.