US PATENT SUBCLASS 73 / 61.66
.~.~.~.~ With means for accelerating solids (e.g., particles)

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

53.01  DF  LIQUID ANALYSIS OR ANALYSIS OF THE SUSPENSION OF SOLIDS IN A LIQUID {15}
61.41  DF  .~ Content or effect of a constituent of a liquid mixture {8}
61.63  DF  .~.~ Settling or filtering ability {2}
61.65  DF  .~.~.~ Sedimentation rate {4}
61.66.~.~.~.~ With means for accelerating solids (e.g., particles)

DEFINITION

Classification: 73/61.66

With means for accelerating solids (e.g., particles):

(under subclass 61.65) Subject matter including means for imparting an increase in the rate at which the sediment settles.

SEE OR SEARCH CLASS

516, Colloid Systems and Wetting Agents; Subcombinations Thereof; Processes of Making, Stabilizing, Breaking, or Inhibiting, appropriate subclasses for colloid systems or agents for such systems or making or stabilizing such systems or agents,

113+, for compositions for or subcombination compositions for or breaking of or inhibiting of colloid systems (e.g., foam breaking, emulsion breaking, dispersion inhibiting, suspension settling, gel breaking, smoke suppressing,

coagulating, flocculating), in each instance, when generically claimed or when there is no hierarchically superior provision in the USPC for the specifically claimed art.