US PATENT SUBCLASS 55 / 471
.~ Impeller within or proximate to space encompassed by separating media

Current as of: June, 1999
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55 /   HD   GAS SEPARATION

467  DF  WITH GAS FLOW EFFECTING MEANS {7}
471.~ Impeller within or proximate to space encompassed by separating media

DEFINITION

Classification: 55/471

(under subclass 467) Apparatus in which the impelling means is wholly or partially within the space defined by a nonplanar separating media or is so close to said space that a definite flow line cannot be distinguished between the impeller and the media.