Breathing air filtration devices
US8833369B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2008 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Dec 29, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0618
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A nasal air filtration device includes a pair of either planar or concave-convex filters, a support structure incorporating a pair of generally annular bases or sleeves for supporting the filters, and a bridge that couples the bases or sleeves to maintain them in a desired spaced-apart relation and to determine a desired angular relationship. The support structure is insertable into the nasal cavities to position the filters within corresponding nasal cavities. Flexible rims maintain the support structure and the filters in spaced-apart relation to the surrounding nasal wall. The filters may be placed within the bases at an angle with respect to the walls of the bases. Also, the filtration device may be flesh tone in color, thereby blending with the skin tone of the user. In some embodiments, a post structure is supplied for supplying a scent or aroma to the wearer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.