Mask, mask shell and seal with improved mounting, mask seal, method of mask manufacture and mask with reduced exhalation noise
US7353827B2 · kind B2 · utility
225Cited by
21References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 1, 2004 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | May 24, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/42
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Mask seal having an embedded mounting member for engaging a mounting member on a mask shell to mount the seal and shell together. Headstrap retention bracket having an indentation for wedgedly engaging a mask shell cylinder to removably mount headstraps to the shell, the indentation circumscribed by an outward wall. Triangular mask seal of styrene-ethylene butylene-styrene copolymer modified with mineral oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.