US PATENT SUBCLASS 209 / 717
.~.~.~.~.~ Including inlet characteristic (e.g., helix, spiral, volute, etc.)

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}
715  DF  .~.~.~.~ Fluidically induced, oppositely directed axial flows (e.g., reverse free-vortexes formed, cyclone, etc.) {4}
717.~.~.~.~.~ Including inlet characteristic (e.g., helix, spiral, volute, etc.) {2}
718  DF  .~.~.~.~.~.~> Guide vane
719  DF  .~.~.~.~.~.~> Tangential

DEFINITION

Classification: 209/717

Including inlet characteristic (e.g., helix, spiral, volute, etc.):

(under subclass 715) Methods and apparatus provided with a passage formation for directing the gaseous suspension to enter the separation device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

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

SEE OR SEARCH CLASS

95, Gas Separation: Processes,

267+, for a gas separation process involving deflection. See (3) Note in Class 209 subclass 132.

96, Gas Separation: Apparatus, appropriate subclasses, for gas separation apparatus for indiscriminate removal of entrained or suspended material in gaseous suspension. See (3) Note in Class 209,

132,. 210, Liquid Purification or Separation, appropriate subclasses, for analogous subject matter for indiscriminate liquid-solid separation. See (3) Note in Class 209

132,.