Self-contained oxygen generator
US7195028B2 · kind B2 · utility
19Cited by
10References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2004 |
| Grant date | Mar 27, 2007 |
| Priority date | — |
| Expiry date | Aug 17, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7761
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A self-contained oxygen generator containing a PSA unit and a flowmeter in the outlet line. The flowmeter provides a signal which represents the flow rate of the oxygen in the outlet line. A leakage circuit with a calibrated orifice and a solenoid valve are also located on the outlet line. In response to a signal from the flowmeter, the solenoid can be actuated so as to provide a calibrated leakage at the outlet of the PSA. This calibrated leakage is useful when overall oxygen usage is too low.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.