Sample handling for chemistry analyzers
US5204269A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1992 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | Apr 2, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/113332
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An automatic chemistry analyzer comprises discrete sample cups about the circumference of a carousel. A motor selectively moves the sample cups towards and away from a target location where a probe is located for reciprocal vertical motion. The motion is timed for reaction with a sample cup so that when the sample cup is in position at the target location, the probe removes fluid from the sample cup. When the sample cup is moved from position, the probe aspirates fluid into an injection cell below the sample cup. A vertical motion only is imparted to the probe, while the sample cups move under the action of a single motor horizontally and laterally to define a rotational movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.