US PATENT SUBCLASS 55 / 513
.~.~ Resilient securing means

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

490  DF  WITH MEANS SECURING OR RETAINING SEPARATING MEDIA {7}
512  DF  .~ Discrete fibrous or particulate solids {4}
513.~.~ Resilient securing means

DEFINITION

Classification: 55/513

(under subclass 512) Apparatus in which at least some portion of the filter media retaining means has elastic properties.

SEE OR SEARCH THIS CLASS, SUBCLASS:

377, for a bag type filter having a flow line coupling with a resilient part.

507, for a filter unit maintained at the end of a flow line by a resilient attaching means.