US PATENT SUBCLASS 422 / 217
.~.~ And means upstream of extended surface, fluid contact means removing particulate impurities from reactant stream

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

129  DF  CHEMICAL REACTOR {28}
211  DF  .~ Including solid, extended surface, fluid contact reaction means; e.g., inert Raschig rings, particulate absorbent, particulate or monolithic catalyst, etc. {10}
217.~.~ And means upstream of extended surface, fluid contact means removing particulate impurities from reactant stream

DEFINITION

Classification: 422/217

And means upstream of extended surface, fluid contact means removing particulate impurities from reactant stream:

(under subclass 211) Apparatus having means located before the contact means for taking particulate impurities from the reactant feed stream.