Gas sampling system having a flow indicator
US4134289A · kind A · utility
16Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1977 |
| Grant date | Jan 16, 1979 |
| Priority date | — |
| Expiry date | Nov 3, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/242
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gas sampling system is provided having a combustibles detector and an oxygen detector supplied from a common sample line by their own individual aspirators. The aspirators are sized to allow the one aspirator to overpower the second aspirator whenever the common sample inlet is blocked a predetermined amount to thereby cause oxygen rich supply air to flow through the oxygen detector causing the oxygen detector to register an abnormal condition as an indication of blocked sample inlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.