Gas sampling system
US6272937A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2000 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | Nov 14, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/128
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gas sampling system includes a sample trapping module having a gas pump and a power supply, and a removable magazine that fits within a port of the trapping module. The magazine contains a non-volatile electronic memory, which controls operation of the trapping module, and has a rotating carousel for holding sample tubes. Individual sample tubes are sealed at each end by a cap that has a needle-pierceable septum, and contain a solid collector material to trap chemical and biological contaminants in a gas sample drawn through the sample tube. Individual sample tubes are moved into and out of a sampling location by incremental rotation of the carousel and, while at the sampling location, a pair of hollow bore needles are inserted through the sample tube end caps to allow the drawing of a gas sample through the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.