US PATENT SUBCLASS 210 / 291
.~ Particular liquid receiving means or foraminous bed retainer

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

263  DF  PARTICULATE MATERIAL TYPE SEPARATOR, E.G., ION EXCHANGE OR SAND BED {13}
291.~ Particular liquid receiving means or foraminous bed retainer {2}
292  DF  .~.~> Hood or top protector type
293  DF  .~.~> Floor type, e.g., false bottom

DEFINITION

Classification: 210/291

(under subclass 263) Apparatus comprising particular means for introducing liquid into a bed of separating material, particular means for removing liquid from a bed of separating material, or particular strainer means within the casing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

172, for separators ancillary to a storage tank.

289, for apparatus of this type which is within a flow line or flow line connected closed casing.

SEE OR SEARCH CLASS

405, Hydraulic and Earth Engineering,

36, for fluid distributing or collecting apparatus buried in the earth.