Chemical impairment detection system with an integrated, multi-function breath chamber
US10488398B2 · kind B2 · utility
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45References
27Claims
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Key dates
| Filing date | Dec 17, 2015 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Mar 10, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/497
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A chemical impairment detection system adaptable for use in a vehicle. The impairment detection system includes an intake adapted to receive an air sample from a source and an alcohol sensor for detecting an alcohol level in the air sample. An integrated breath chamber channels the air sample from the intake to the alcohol sensor. Source evaluator means in the breath chamber measure one or more characteristics of the received air sample for validating the sample. The source evaluator means measures the air sample characteristics as the air sample flows through the breath chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.