Airflow filter sensor
US12105004B2 · kind B2 · utility
0Cited by
3References
18Claims
0Family size
Inventor
Key dates
| Filing date | Jun 8, 2022 |
| Grant date | Oct 1, 2024 |
| Priority date | — |
| Expiry date | Jun 10, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/084
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An air flow sensor for use with an air filter comprises a tubular housing with a flap that is opened by air pressure, the extent of opening increasing as the surrounding air filter becomes clogged. A terminal on the flap contacts different measurement terminals on the housing, closing individual circuits connected to an indicator, whereby a display shows when the filter is clear and when it is clogged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.