Filtering apparatus for air treatment apparatus
US6562095B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2001 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Apr 17, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/31
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filtering apparatus for an air treatment apparatus (5), a superior purity of the filtered air being required. The apparatus has a plurality of filter cartridges (3), provided with filters (2) and inserted into one cassette (4) each. The cassettes are fastened in the air treatment apparatus and the filter cartridges (3) have, on their side, which is turned towards the incoming air stream, a seal (6), which extends in an axial direction and around the periphery and axially abuts a surface, which is oriented radially in relation to the air stream and the apparatus or the like respectively and which surrounds an outlet opening (9), defined by each filter cartridge. According to the invention the surface has a sealing sheet (21), which with the exception of the opening and openings (9) respectively is disposed in a continuous radial sealing cross section-plane through the entire air treatment apparatus or the like (5) and extends outwards in a radial direction through the outer wall (10) of the apparatus at a joint (23).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.