Magnetic stirrer for sample container of photometric analyzer
US4227815A · kind A · utility
15Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 6, 1979 |
| Grant date | Oct 14, 1980 |
| Priority date | — |
| Expiry date | Jul 6, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/03
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Photometric analysis apparatus in which a sample to be optically measured is stirred by a rotating magnetic stirring element within a container holding the sample. An optical path through the container and through the sample therein intersects the rotational path of the stirring element and is hence obstructed by the stirring element in one or more rotational positions. Rotation of the stirring element is controlled in a manner which stops rotation thereof in a position out of the optical path thereby allowing optical measurement of the sample material unobstructed by the stirring element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.