Spring-loaded hydraulically active liquid chromatography column
US5919361A · kind A · utility
9Cited by
8References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 17, 1997 |
| Grant date | Jul 6, 1999 |
| Priority date | — |
| Expiry date | Dec 17, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/522
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The adsorbent bed (25) retained in an HPLC column (1) is maintained in a constant state of compression by a spring loaded hydraulically active second column (13). A relatively small spring (14) loaded piston (15) in the second column maintains a constant hydraulic pressure in the hydraulic chamber (3) of the larger diameter HPLC column (1). Multiple small diameter columns (13) can be employed if necessary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.