US PATENT SUBCLASS 55 / 492
.~ Internal frame or support means

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

490  DF  WITH MEANS SECURING OR RETAINING SEPARATING MEDIA {7}
492.~ Internal frame or support means

DEFINITION

Classification: 55/492

(under subclass 490) Apparatus in which the media is maintained or secured by imbedding a holding or reinforcing means within the media so that the imbedded means is substantially surrounded by the media.

SEE OR SEARCH THIS CLASS, SUBCLASS:

379, for collapsible filter bag securing or supporting means internally of the bag.