US PATENT SUBCLASS 55 / 482
TWO OR MORE SEPARATORS (E.G., SPACED FILTERS IN FLOW LINE OR CASING)

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

482TWO OR MORE SEPARATORS (E.G., SPACED FILTERS IN FLOW LINE OR CASING) {5}
482.1  DF  .~> With heating or cooling means
483  DF  .~> With framework for edge to edge relation
484  DF  .~> Spaced for parallel flow of gas
485  DF  .~> Three or more serially spaced
486  DF  .~> Plies or layers of different characteristics or orientation {3}

DEFINITION

Classification: 55/482

(under the class definition) Apparatus comprising two or more operatively distinct filtering media in spaced or edge-to-edge relation, or comprised of two or more plies, at least two of said plies being functionally distinct.

(1) Note. Operatively distinct separating means under this definition includes a separator comprised of one continuous separating surface supported in such a manner as to form two or more spaced surfaces through which the gas flows, either in series or in parallel.

(2) Note. Although the title and definition are broad it is not intended that deflectors be cross referenced to this group of subclasses.

SEE OR SEARCH THIS CLASS, SUBCLASS:

342+, for multiple separators each with discrete and longitudinally confined gas inlet or outlet flow path.