US PATENT SUBCLASS 55 / 489
.~.~ Orientation of elements

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

482  DF  TWO OR MORE SEPARATORS (E.G., SPACED FILTERS IN FLOW LINE OR CASING) {5}
486  DF  .~ Plies or layers of different characteristics or orientation {3}
489.~.~ Orientation of elements

DEFINITION

Classification: 55/489

(under subclass 486) Apparatus in which contiguous similar members are placed one with respect to the other so that one said member is turned about some axis or shifted relative to the other to thereby (1) define a different flow relation to the said other, or (2) together define a modified or a different separating media.