Airflow calibrator
US11385096B2 · kind B2 · utility
1Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 2018 |
| Grant date | Jul 12, 2022 |
| Priority date | — |
| Expiry date | Jul 13, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/7086
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An airflow calibrator 10 may generally comprise an inlet 15 in fluid communication with an outlet 20 to define a flow path 30 of a fluid through the airflow calibrator 10; a face seal valve 40 in fluid communication with the inlet 15; a removable flow cell 50 in fluid communication with the face seal valve 40; a variable restrictor valve 60 in fluid communication with the removable flow cell 50; and an optical sensor array 70 to determine the airflow, i.e., flow rate, of an air sampling pump in fluid communication with the airflow calibrator. Methods of using the airflow calibrator are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.