Neck-worn air filtration device
US9095803B2 · kind B2 · utility
3Cited by
37References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2011 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Jul 18, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/42
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A neck-worn personal air filtration device for providing a zone of filtered air around or near a user's breathing zone is described. The device comprises a blower, a hose, and a neck-worn plenum including a filter. Air blown from the blower, passes through the hose and into the plenum exiting the plenum. The air is filtered by a filter for breathing by the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.