Mask apparatus
US7152602B2 · kind B2 · utility
100Cited by
18References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2003 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | May 30, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0625
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A face mask comprises a sealing collar (1) extending around the mouth with a shelf (4) extending under the nose supporting a gel insert (7) that makes sealing contact between the nostrils and a passage (6) through the shelf. A curved, rigid window (30) is a push fit in a central opening (2) of the collar (1) and has a gas inlet (33) attached with it so that the window can be removed or connected with the sealing collar as necessary. The collar (1) supported on the head by a harness (20) having two triangular portions (21) on opposite sides encircling respective ears.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.