US PATENT SUBCLASS 210 / 299
.~.~ Including constituent trapping feature

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}
299.~.~ Including constituent trapping feature {10}
300  DF  .~.~.~> Alternate filters and traps in series {1}
302  DF  .~.~.~> Flow-line valve upstream of separator
303  DF  .~.~.~> Cut-off sediment trap
304  DF  .~.~.~> Tangential flow, spiral or convolute baffle
305  DF  .~.~.~> Baffle preceding or within sediment trap {1}
307  DF  .~.~.~> Downstream of filter medium
308  DF  .~.~.~> Directly communicating with tubular filter interior {1}
310  DF  .~.~.~> Lateral trap
311  DF  .~.~.~> Downflow inlet, upflow through filter medium
312  DF  .~.~.~> Sediment discharge means {1}

DEFINITION

Classification: 210/299

(under subclass 295) Apparatus including a feature depending upon the different specific gravities of constituents of a liquid mixture for removing a constituent or trapping it in a recess.

SEE OR SEARCH THIS CLASS, SUBCLASS:

248, for drip or overflow catchers or means for receiving the contents of a filter unit when the casing is opened.