Subsonic venturi proportional and isokinetic sampling methods and apparatus
US5337595A · kind A · utility
28Cited by
10References
9Claims
0Family size
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Key dates
| Filing date | Mar 18, 1992 |
| Grant date | Aug 16, 1994 |
| Priority date | — |
| Expiry date | Mar 18, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/225
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Subsonic venturi proportional and isokinetic sampling methods and apparatus for use in evaluating exhaust emissions from an exhaust source which utilizes a pair of calibrated subsonic venturi restrictions for measuring the bulkstream and extracted sample flow rates respectively. The subsonic venturis may be specifically configured relative to each other to provide isokinetic sampling under specified control conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.