Gas sampler for aerosol atmosphere
US4392388A · kind A · utility
1Cited by
10References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 17, 1981 |
| Grant date | Jul 12, 1983 |
| Priority date | — |
| Expiry date | Feb 17, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/383
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A process and device using back-diffusion for sampling a gas from an environment containing an aerosol of tramp material. The device cleans the tramp material from a barrier by the flow of a purge gas. The purge gas flow prevents diffusion of the tramp material through ports in the barrier through which the sample gas diffuses against purge gas flow. The purge gas continuously cleans the barrier, retards tramp material diffusion, and gathers and transports the sample gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.