US PATENT SUBCLASS 209 / 712
.~.~.~.~.~.~ Serial arrangement

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}
710  DF  .~.~.~.~ Plural individual interconnected separation means having swirling currents {1}
711  DF  .~.~.~.~.~ Fluidically induced, oppositely directed axial flows only (e.g., multiple cyclone arrangements, etc.) {1}
712.~.~.~.~.~.~ Serial arrangement

DEFINITION

Classification: 209/712

Serial arrangement:

(under subclass 711) Methods and apparatus wherein a separated fraction from an upstream separating phase becomes an input of a subsequent separating phase.

(1) Note. The separated fraction is not restricted to an axially discharged fraction.

SEE OR SEARCH THIS CLASS, SUBCLASS:

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

SEE OR SEARCH CLASS

55, Gas Separation, appropriate subclasses, for indiscriminate removal of entrained or suspended material; particularly,

338+, for a continuous gas flow path with a recirculation of the separated gas to either (1) the inlet of the system or (2) to an inlet of one of the discrete separator devices in the serial arrangement; and subclass 345 for plural sequentially connected gas separators each employing a rotary current. See (3) Note in Class 209 subclass 132.