Dosed oxygen systems with delivery tube anti-blockage features and a method for delivering respiratory gas
US11452889B2 · kind B2 · utility
0Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2019 |
| Grant date | Sep 27, 2022 |
| Priority date | — |
| Expiry date | Jun 3, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D2231/025
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Oxygen-delivery systems are described. The systems may supply emergency respiratory gas on demand to aircraft passengers. To reduce risk of blockage of tubes delivering anti-blocking gas to the face masks worn by the passengers, the systems may be designed to provide a continuous trickle flow of respiratory gas, or one or more anti-blocking pulses of gas, into a delivery tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.