Acoustic liquid level detection
US8104500B2 · kind B2 · utility
1Cited by
21References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 18, 2008 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Jun 23, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/3143
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The filling noise generated inside a pressurized container when liquid is injected into the container is detected at the outer end of a vent tube which extends into the container. When the level of liquid in the container reaches the lower end of the vent tube, the filling noise detected at the outer end is abruptly diminished. This abrupt change is detected and used to automatically terminate filling of the tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.