Method and apparatus for detecting insufficient liquid levels
US4419903A · kind A · utility
12Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 22, 1982 |
| Grant date | Dec 13, 1983 |
| Priority date | — |
| Expiry date | Feb 22, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N35/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for determining an insufficient liquid volume. The invention includes an electromagnetic sensing device in a conduit into which the sample liquid is mixed. The electromagnetic sensing device detects the presence of air in the conduit which indicates that an insufficient liquid volume has been aspirated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.