US PATENT SUBCLASS 210 / 263
PARTICULATE MATERIAL TYPE SEPARATOR, E.G., ION EXCHANGE OR SAND BED

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

263PARTICULATE MATERIAL TYPE SEPARATOR, E.G., ION EXCHANGE OR SAND BED {13}
264  DF  .~> Selective units or compartments
265  DF  .~> With gravitational separator
266  DF  .~> With spaced non-particulate separating means
267  DF  .~> Trunnion mounted casing
268  DF  .~> Gravity flow of particles type
269  DF  .~> With rehabilitation means {6}
282  DF  .~> Removable cartridge or hand-manipulated container
283  DF  .~> Pervious divider between and contacting beds
284  DF  .~> Spaced beds
285  DF  .~> Embedded baffle {1}
287  DF  .~> Within flow line or flow line connected closed casing {2}
290  DF  .~> With multi-layer beds
291  DF  .~> Particular liquid receiving means or foraminous bed retainer {2}

DEFINITION

Classification: 210/263

(under the class definition) Apparatus comprising a bed of discrete particles each capable of movement within the bed and readily separable from each other.

SEE OR SEARCH THIS CLASS, SUBCLASS:

118, for flow of fluid pressure responsive operation of sand valves.

189, for plual chambers with movement of granules therebetween.

190+, for a separator with external supply means for regenerating material in, water softening systems,

193, for a filter with precoat adding or supplying means.

226, for a sectional chamber press type filter with a porous filler. 317, for spaced filters including a nonself-supporting medium.

350+, for a filter with movable means to compress a medium.

500.1+, for filter materials, particularly subclasses 503+ for diverse granular or fibrous materials.

615, for processes of aerobic treatment utilizing contact surfaces.

660+, for processes involving ion exchange or sorption.

767+, for separating processes, particularly subclasses 777+ for processes employing precoats or filter-aids, and subclass 80 for separating and rehabilitation of a particulate bed.

SEE OR SEARCH CLASS

96, Gas Separation: Apparatus,

108+, for solid sorbent apparatus for gas separation.

166, Wells,

51, and 278 for processes of and apparatus for forming gravel filters in wells.