US PATENT SUBCLASS 55 / 332
.~.~.~ Cohesive sheet-like filter

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

315  DF  PLURAL SERIAL BASICALLY DIVERSE SEPARATING MEDIA {3}
318  DF  .~ Plural stages in unitary casing {2}
320  DF  .~.~ Deflector and fibrous, filamentary, particulate solids, or cohesive sheet filter type {6}
332.~.~.~ Cohesive sheet-like filter {4}
333  DF  .~.~.~.~> Multiple contiguous layers or coils with radial gas flow
334  DF  .~.~.~.~> Bag type {1}
336  DF  .~.~.~.~> Conical
337  DF  .~.~.~.~> Cyclone or centrifugal whirl type deflector

DEFINITION

Classification: 55/332

(under subclass 320) Apparatus in which the means other than the impingement or flow redirecting means comprises a coherent sheet of porous or apertured material (e.g. paper, woven wire or fabric).

SEE OR SEARCH THIS CLASS, SUBCLASS:

495+, and 522+, for coherent sheet material filters.