US PATENT SUBCLASS 422 / 139
.~ Fluidized 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}
139.~ Fluidized bed {7}
140  DF  .~.~> With liquid present
141  DF  .~.~> Plural reaction beds {1}
143  DF  .~.~> Including specific wind box or particulate matter support grid
144  DF  .~.~> Including means to strip reaction mass from, or to regenerate, the particulate matter (including fluidized bed regenerators, per se)
145  DF  .~.~> And means providing flow of particulate matter into or out of reaction chamber
146  DF  .~.~> With heat exchange means affecting reaction chamber or reactants located therein
147  DF  .~.~> And means mechanically separating and removing particulate bed material from fluid effluent

DEFINITION

Classification: 422/139

Fluidized bed:

(under subclass 129) Apparatus wherein a bed of fluidizable solid particulate material, which may be a reactant, catalyst, or inert material, is disposed in a reaction chamber for the purpose of carrying out a chemical reaction in the formation of a product and including means for introducing a fluidizing medium into the bed.

SEE OR SEARCH CLASS

34, Drying and Gas or Vapor Contact With Solids,

576+, for similar fluidized bed structure for drying of particulate material.