Sampling apparatus for the microbiological analysis of air
US6094997A · kind A · utility
13Cited by
1References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 12, 1999 |
| Grant date | Aug 1, 2000 |
| Priority date | — |
| Expiry date | May 12, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/2223
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This apparatus has a sieve (4) with a wall (22) perforated with a multitude of holes, means (4, 5) for holding a removable receptacle (20) containing a layer of growth media (21) and means (7, 8) for sucking in air at the periphery of the receptacle (20) in order to cause to enter the apparatus (1), through holes in the wall (22), air which strikes the layer of growth media (21), the latter and the wall (22) being shaped so that their separation increases from their periphery towards their center.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.