Closed and open tube sampling apparatus
US5216926A · kind A · utility
26Cited by
22References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 5, 1992 |
| Grant date | Jun 8, 1993 |
| Priority date | — |
| Expiry date | Aug 5, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2035/0479
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An automatic sampling apparatus is constructed to use bang-bang fluid driven actuators whose control system is modified to permit accurate positioning over its range of motion. The actuators are positioned to aspirate liquid contents held within stoppered sample containers and equilibrate pressure in the sample containers to atmospheric prior to aspiration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.