Contact type liquid level sensing system
US5155472A · kind A · utility
20Cited by
9References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1986 |
| Grant date | Oct 13, 1992 |
| Priority date | — |
| Expiry date | Jul 14, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B21/182
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A liquid level sensing device having a transducer in which successive bursts of pulses of ultrasonic energy are transmitted across a gap. When liquid is present in the gap the bursts of pulses are received and signal processed to indicate the presence of liquid in the gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.