US PATENT SUBCLASS 209 / 723
.~.~.~.~.~ Plural extractions at diverse locations along flow path

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

132  DF  FLUID SUSPENSION {2}
133  DF  .~ Gaseous {7}
142  DF  .~.~ Grading deposition {1}
143  DF  .~.~.~ With deflection {4}
722  DF  .~.~.~.~ Fluidically induced unidirectional swirling (e.g., axial, radial, tangential separation, free-vortex, etc.) {1}
723.~.~.~.~.~ Plural extractions at diverse locations along flow path

DEFINITION

Classification: 209/723

Plural extractions at diverse locations along flow path:

(under subclass 722) Methods and apparatus wherein multiple fractions are withdrawn during the course of travel at discrete positions.

(1) Note. The multiple fractions merely requires withdrawal at different positions rather than being distinct grades or classes separately collected.

SEE OR SEARCH THIS CLASS, SUBCLASS:

710, for plural, individual and distinct, interconnected fluidically induced unidirectional swirling separating means.

725, for analogous subject matter involving liquid suspension separation. See (1) Note in Class 209 subclass 155.

SEE OR SEARCH CLASS

55, Gas Separation,

452, for a gas separator device wherein a plurality of egress openings are provided in a whirl chamber. See (3) Note in Class 209 subclass 132. 210, Liquid Purification or Separation, appropriate subclasses, for analogous subject matter for liquid-solid separation. See (3) Note in

132, and (1) Note in Class 209 subclass 155.