Sampler apparatus and method of use
US6038934A · kind A · utility
5Cited by
10References
9Claims
0Family size
Inventor
Key dates
| Filing date | Dec 1, 1994 |
| Grant date | Mar 21, 2000 |
| Priority date | — |
| Expiry date | Dec 1, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/2085
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This disclosure is directed to a system for providing a sample. It incorporates and appropriately connected valve element working with a surrounding seat and housing. The valve element responds to pressure from the atmosphere which purges the valve element of remnants of a sample passing therethrough so that no trace constituents are left in the valve element. The valve element is a two position, three way valve element which is rotated, thereby permitting a purge gas to flow or not flow, and it rotated to another position permitting the sample of interest to flow or not flow. A sequence of operations is defined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.