System for manufacturing chromatographic columns
US5709904A · kind A · utility
1Cited by
7References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 15, 1996 |
| Grant date | Jan 20, 1998 |
| Priority date | — |
| Expiry date | Jul 15, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/567
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Invention is directed to a system, i.e. method and apparatus, for manufacturing thin-walled capillary columns for use in a gas chromatographic device. The system involves the sequential filling and evacuating of the columns in a controlled environment, where the system is under the control of a microprocessor to achieve improved processing control and monitoring. The system also produces a consistant homogeneous film of polymer along the inner wall of the columns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.