US PATENT SUBCLASS 209 / 169
.~.~.~.~.~.~ Agitating

Current as of: June, 1999
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209 /   HD   CLASSIFYING, SEPARATING, AND ASSORTING SOLIDS

132  DF  FLUID SUSPENSION {2}
155  DF  .~ Liquid {5}
162  DF  .~.~ Floating {3}
163  DF  .~.~.~ Buoyant material {2}
*  DD  .~.~.~.~ Bubbles {2}
168  DF  .~.~.~.~.~ Apparatus {2}
169.~.~.~.~.~.~ Agitating

DEFINITION

Classification: 209/169

(under subclass 168) Devices in which the contact between the gas forming the bubbles and the liquid carrying the material to be selectively floated is effected by agitation, which devices are limited to flotation by bubbles.

SEE OR SEARCH CLASS

261, Gas and Liquid Contact Apparatus, for gas and liquid contact apparatus, per se.

366, Agitating, for agitators, per se.

516, Colloid Systems and Wetting Agents; Subcombinations Thereof; Processes of Making, Stabilizing, Breaking, or Inhibiting,

10+, for foam colloid systems or agents for such systems or making or stabilizing such systems or agents, subclasses 115+ for compositions for or subcombination compositions for or breaking of or inhibiting of foam colloid systems; in each instance, when generically claimed or when there is no hierarchically superior provision in the USPC for the specifically claimed art.