Oxygen and nitrogen enriched atmospheres in aircraft
US7179322B2 · kind B2 · utility
15Cited by
33References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2003 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | Nov 28, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B2210/0046
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of supplying oxygen rich air to the passengers and crew on board a passenger aircraft by use of a highly permeable oxygen enrichment unit, wherein the fiber tubes of the hollow fiber membranes used to separate normal air into oxygen rich and nitrogen rich fractions in the oxygen enrichment unit are subjected to a modification technique before the tubes are coated with a selective polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.