Enclosure ventilation filter and assembly method
AssigneeDonaldson Company, Inc.
InventorsLloyd G. Keleny, Veli E. Kalayci, Michael J. Hebert, Yehya A. Elsayed, David W. Mulder, Andrew J. Dallas
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Abstract
A filter assembly for an enclosure, particularly for an ostomy bag, is described having an enclosure side, a first layer which is gas permeable, and an adsorbent layer comprising adsorbent particles dispersed in a fine fiber web. The enclosure side of the filter assembly includes an adhesive zone in which adhesive is present having an outer adhesive perimeter and a weld area surrounding at least a portion of the adhesive zone, where the filter assembly is heat-sealable to the enclosure at the weld area. A method of assembly is also described.
Claims11
A filter assembly for an enclosure, comprising:
- an enclosure side and a side opposite from the enclosure side;
- a first layer which is gas permeable;
- and
- an adsorbent layer comprising adsorbent particles;
- wherein the enclosure side of the filter assembly comprises:
- an adhesive zone in which adhesive is present having an outer adhesive perimeter;
- a weld area surrounding at least a portion of the adhesive zone, where the filter assembly is heat-sealable to the enclosure at the weld area.
Dependencies are inferred from the claim text.