Analytical instrument thermoelectric temperature regulator
US4534941A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1981 |
| Grant date | Aug 13, 1985 |
| Priority date | — |
| Expiry date | Dec 4, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/8818
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A temperature control system used to precisely and accurately control the temperature of a fluid stream in an analytical system designed for investigation of the chemical constituents of the fluid stream. One example of use is in chromatography such as for the chromatographic column in an amino acid analyzer system. The temperature control system utilizes a set of thermoelectric modules to transfer heat between a thermoconductive block which holds the chromatographic column and an air exchange heat sink which obtains heat from or disposes heat into ambient air as required. The control system regulates the temperature at a very rapid rate in order to minimize the recycle time of the instrument.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.