System and methods for maintaining constant airflow and efficiency while tuning sampling flow
US9915590B1 · kind B1 · utility
1Cited by
17References
12Claims
0Family size
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Key dates
| Filing date | Aug 5, 2016 |
| Grant date | Mar 13, 2018 |
| Priority date | — |
| Expiry date | Aug 5, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/205
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a material sample separation and collection system, a sample is obtained by airflow separation. The system and attendant methods collect a complete sample over a defined period of time by modulating one or more pressure balancing valves, thus allowing for a variable flow rate of materials through the system even while the fan or other source of airflow operates at constant speed. The sampling rate, which is based on how quickly or slowly materials enter and pass through the system and into a collection vessel, is automatically modulated in real time based on sensor data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.