US PATENT SUBCLASS 422 / 216
.~.~ Compact bed of particulate, fluid contact material and means providing gravity flow of material within bed

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}
216.~.~ Compact bed of particulate, fluid contact material and means providing gravity flow of material within bed

DEFINITION

Classification: 422/216

Compact bed of particulate, fluid contact material and means providing gravity flow of material within bed:

(under subclass 211) Apparatus wherein the extended surface, fluid contact material is in the form of a compact bed of particulate material and having means providing flow of the material by gravity inside the bed.