Gas analyzer with diffusion filter
US5054328A · kind A · utility
16Cited by
9References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 1989 |
| Grant date | Oct 8, 1991 |
| Priority date | — |
| Expiry date | Nov 2, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/227
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gas analyzer comprises a diffusion filter to segregate sampled gases containing liquid and particulate solid contaminants from the analyzer. A gas permeable diffusion membrane separates a flowing stream of dirty sample gas from a closed circuit clean gas stream circulated through an analyzer. The membrane does not pass liquids or particulate solids but does permit rapid diffusion of gases so the gas composition in the closed circuit rapidly reaches equilibrium with the sample gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.