US PATENT SUBCLASS 55 / 372
.~ With additional nonbag type filter

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

361  DF  FLEXIBLE OR COLLAPSIBLE BAG TYPE {14}
372.~ With additional nonbag type filter

DEFINITION

Classification: 55/372

(under subclass 361) Apparatus in which the gas is passed through two or more filters, and in which less than all of said filters are of the flexible or collapsible bag type.

SEE OR SEARCH THIS CLASS, SUBCLASS:

334, for a bag type filter and a serially arranged basically different type separator.

482, for two or more filters, none being of the flexible bag type.