US PATENT SUBCLASS 422 / 192
.~.~.~.~ At least one reaction stage formed of fixed, annularly shaped bed of contact material and means directing reaction stream therethrough substantially perpendicular to longitudinal axis of 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}
188  DF  .~ Including plural reaction stages {2}
189  DF  .~.~ And means providing discrete sequential reaction stages; e.g., train, etc. {2}
190  DF  .~.~.~ Plural solid, extended surface, fluid contact reaction stages each containing; e.g., inert Raschig rings, particulate sorbent, particulate or monolithic catalyst, etc. {2}
192.~.~.~.~ At least one reaction stage formed of fixed, annularly shaped bed of contact material and means directing reaction stream therethrough substantially perpendicular to longitudinal axis of bed

DEFINITION

Classification: 422/192

At least one reaction stage formed of fixed, annularly shaped bed of contact material and means directing reaction stream therethrough substantially perpendicular to longitudinal axis of bed:

(under subclass 190) Apparatus wherein at least one of the extended surface contact means is in the form of a relatively fixed, annularly shaped bed of contact material and including means for directing the flow of reactants through the contact bed in a direction substantially perpendicular to the longitudinal axis of the contact bed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

181, for this structure in a waste gas purifier.