Apparatus and method for concentrating constituents from a gas stream
US5914454A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1997 |
| Grant date | Jun 22, 1999 |
| Priority date | — |
| Expiry date | Sep 12, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/4066
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for sampling a gas stream and concentrating selected constituents found therein. The apparatus includes a collection chamber into which a gas stream is drawn and a nozzle which sprays charged droplets of a collection fluid countercurrent to the gas stream. The charged droplets, now containing the selected constituents, are propelled to the wall under the influence of an electrostatic force and collected in a collection well at the bottom of the collection chamber. The apparatus can include a cyclonic flow inducer which imparts a circumferential component to the gas stream velocity, thereby enhancing collection efficiency by increasing the residency time of the gas stream within the collection chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.