Portable air delivery system and method of using same
US6889688B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 17, 2003 |
| Grant date | May 10, 2005 |
| Priority date | — |
| Expiry date | May 2, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/33
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An air delivery system includes a coupling mechanism that is adapted to be connected between a source of oxygen-enriched air and an air cannula that can be worn by a user. The coupling mechanism includes a spool assembly for paying out and for winding up a predetermined length of tubing coupled between the air cannula and the source of oxygen-enriched air. The spool assembly has a sufficiently low drag factor to allow complete mobility of a user wearing the cannula without causing it to be dislodged during pay out of the predetermined length of tubing and without causing it to be dislodged during take up of the predetermined length of tubing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.