US PATENT SUBCLASS 210 / 314
.~.~ Spaced filters

Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

294  DF  DIVERSE DISTINCT SEPARATORS {3}
295  DF  .~ Including a filter {5}
314.~.~ Spaced filters {4}
315  DF  .~.~.~> One within another
316  DF  .~.~.~> One adjacent inlet or outlet conduit
317  DF  .~.~.~> Including non-self-supporting medium
318  DF  .~.~.~> Incompatible shapes

DEFINITION

Classification: 210/314

(under subclass 295) Apparatus which comprises a plurality of isolated filters or filter elements abutting along a surface to enclose an empty space.

SEE OR SEARCH THIS CLASS, SUBCLASS:

323+, for plural distinct similar filters.