Sample dispensing system in an automatic chemical testing apparatus
US4078895A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 1976 |
| Grant date | Mar 14, 1978 |
| Priority date | — |
| Expiry date | Sep 21, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2035/0417
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In an automatic chemical testing apparatus, means are provided for dispensing aliquots of a sample to reaction containers. A carriage means housing a self-priming hydraulic circuit mounted for motion on a support arm housing drive means. During an operating cycle, control means operate the drive means to position a conduit communicating with the hydraulic circuit over a sample source and aspirate an amount of the serum into the hydraulic circuit. The carriage means is then moved, preferably at uniform rate over a row and dispensing means are pulsed to dispense samples into individual reaction containers while the carriage means is moving. The carriage means is then returned to its starting position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.