US PATENT SUBCLASS 96 / 217
.~.~.~ Impeller or screw on rotating shaft

Current as of: June, 1999
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96 /   HD   GAS SEPARATION: APPARATUS

155  DF  DEGASIFYING MEANS FOR LIQUID {13}
204  DF  .~ Liquid flow slinger, spreader, deflector, disperser, or rotation modifier {4}
216  DF  .~.~ Centrifugal type {1}
217.~.~.~ Impeller or screw on rotating shaft

DEFINITION

Classification: 96/217

Impeller or screw on rotating shaft:

(under subclass 216) Apparatus which is provided with a helical screw or impeller on a rotating shaft.

SEE OR SEARCH CLASS

55, Gas Separation,

456+, for fixed gas whirler or rotator means in the form of a helical vane or baffle within a flow conduit.