Filter cartridge holder with fit-check device
US11219788B2 · kind B2 · utility
4Cited by
9References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2016 |
| Grant date | Jan 11, 2022 |
| Priority date | — |
| Expiry date | May 5, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B9/02
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A cartridge holder for a respirator, the cartridge holder including a fit-check device with a sealing platen that can be actuated between a first, unsealed position and a second, sealed position in which at least a portion of the sealing platen contacts a major surface of a disposable filter cartridge within the cartridge holder so as to prevent airflow through the disposable filter cartridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.