Enclosure ventilation filter and assembly method
US10646370B2 · kind B2 · utility
85Cited by
31References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2015 |
| Grant date | May 12, 2020 |
| Priority date | — |
| Expiry date | Jun 16, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2253/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.