Dual-inlet selective flow regulating valve
US7637280B2 · kind B2 · utility
4Cited by
20References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2003 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Jan 4, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8671
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid distribution and control valve for respiratory gas delivery systems. The valve has a body which is defined by four internal zones. Each zone is connectable to an external fluid circuit and a mobile structure. The mobile structure can move into four positions. The different positions of the mobile structure determine which of the zones are in fluid communication with each other. The valve may also be used to in a pilot's mask to supply oxygen to the pilot from a main source or from a secondary source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.