Liquid level and sampling gauge
US5072625A · kind A · utility
6Cited by
14References
11Claims
0Family size
Inventor
Key dates
| Filing date | Apr 25, 1990 |
| Grant date | Dec 17, 1991 |
| Priority date | — |
| Expiry date | Apr 25, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/1056
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A liquid level and sampling gauge is shown which includes a stick having a vertical face with a groove formed therein. A transparent sample tube is mounted in the groove and has a bottom opening. A rigid rod is located within the sample tube and has a lower end and an upper end. A valve member is carried on the rod lower end and includes an O-ring which contacts a valve seat provided in the stick lower end when the valve member is moved between an open position which admits liquid to the sample tube and a closed position. A valve operator at the stick upper end moves the valve member between the open and closed positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.