US PATENT SUBCLASS 55 / 303
.~.~.~ Draft diverted from one side of filter to other

Current as of: June, 1999
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55 /   HD   GAS SEPARATION

282  DF  WITH NONLIQUID CLEANING MEANS FOR SEPARATING MEDIA {13}
301  DF  .~ Cohesive filter media cleaning {2}
302  DF  .~.~ Pneumatic reverse flushing {1}
303.~.~.~ Draft diverted from one side of filter to other

DEFINITION

Classification: 55/303

(under subclass 302) Apparatus in which the gasiform fluid is bled or taken at one face (upstream or downstream) of the media and directed to the other.