US PATENT SUBCLASS 55 / 369
.~ Closure means other than coupler to flow line for filter or cover bag

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

361  DF  FLEXIBLE OR COLLAPSIBLE BAG TYPE {14}
369.~ Closure means other than coupler to flow line for filter or cover bag {1}
370  DF  .~.~> Use position residue removal means {1}

DEFINITION

Classification: 55/369

(under subclass 361) Apparatus in which a filter member or a nonrigid member enclosing said filter member has an opening separate and distinct from the opening attachable to the gas flow conduit, and means for closing said separate and distinct opening.