Air samplers
US6851459B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2001 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | Feb 18, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/4066
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An air sampler for use in analyzing biological or other analytes, comprizes an airflow chamber having an air inlet and an air outlet. An extract from an air mover draws ambient air in through the inlet, and then through the chamber, to discharge it back to atmosphere by way of an outlet. The airflow chamber houses a cyclone air/liquid separator through which the inflowing air is caused to pass. An injector introduces liquid into air flowing through the air inlet. The cyclone separator extracts this liquid and any entrained particles therein and discharges it from the airflow chamber, initially by way of a duct, where it is then conveyed to a collection vessel, by way of a three channel peristaltic pump, and a duct. The collection vessel is housed within a Peltier-cooled holder to maintain the contents of the vessel within the 2-8 degree Celsius range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.