Breathing apparatus and installation providing protection against hypoxia
US6923183B2 · kind B2 · utility
13Cited by
11References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2002 |
| Grant date | Aug 2, 2005 |
| Priority date | — |
| Expiry date | Nov 14, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B7/14
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A breathing apparatus for an aircraft crew member has a breathing mask provided with a demand regulator and connected to a source of breathing gas, such as a pressurized oxygen cylinder or preferably an OBOGS. The apparatus includes an individual buffer plenum specific to the mask on a line for feeding the regulator of the mask from the source. The volume of the plenum is sufficient to provide for at least two typical breaths of the mask wearer in succession. A non-return check valve is located between the plenum and the source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.