Gas sampling device
US4221130A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 24, 1979 |
| Grant date | Sep 9, 1980 |
| Priority date | — |
| Expiry date | May 24, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/497
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gas sampling device has a gas-entry passage dimensioned to provide laminar flow to the gas and opening into a larger gas-receiving passage. A gas sampling tube is supported from the larger gas-receiving passage, extends only to the smaller gas-entry passage for sampling the entering gas, and is coaxially spaced from the walls of the gas-entry passage to sample the gas in the gas-entry passage without dilution from the gas-receiving passage or interference with the gas flow. The device is particularly useful for sampling small exhaled breath gas flow in combination with neonatal respiratory apparatus for sampling the breath of neonates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.