Filter element that has a thermo-formed housing around filter material
US6874499B2 · kind B2 · utility
33Cited by
53References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2002 |
| Grant date | Apr 5, 2005 |
| Priority date | — |
| Expiry date | Jan 13, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/35
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter cartridge (5), suitable for attachment to a respiratory mask, has a housing that includes an air inlet (27), an air outlet (39), and filter material (17, 19) through which air to be filtered travels through when passing from the inlet to the outlet. At least part of the housing includes a sheet material (23) that is thermo-formed around the sides of the filter material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.