US PATENT SUBCLASS 406 / 172
.~.~.~ And means to clean filter

Current as of: June, 1999
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406 /   HD   CONVEYORS: FLUID CURRENT

154  DF  FLUID CURRENT CONVEYOR OUTLET MEANS {5}
168  DF  .~ With material separating receptacle {6}
171  DF  .~.~ Having filter {1}
172.~.~.~ And means to clean filter

DEFINITION

Classification: 406/172

And means to clean filter:

(under subclass 171) Subject matter wherein means are provided to remove load material collected on or inside the filter.

SEE OR SEARCH CLASS

55, Gas Separation,

301+, for filter cleaning.

210, Liquid Purification or Separation,

407+, for filter cleaning.