Three stage needle for use with an autosampler
US6706245B2 · kind B2 · utility
11Cited by
12References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2001 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Apr 6, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/185
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A three stage needle for use with a sampling station of an autosampler to facilitate gas and liquid extractions and injections. The needle includes a bottom stage, a middle stage, and a top stage. Each of the stages of the needle includes at least one aperture used to extract gas or liquid from a specimen or perform an injection. In addition, each of the stages can be placed in fluidic communication with the sampling station to facilitate the desired extraction or injection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.