Liquid sample handling system
US4478094A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 1983 |
| Grant date | Oct 23, 1984 |
| Priority date | — |
| Expiry date | May 5, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2035/103
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An automatic liquid transfer system includes a horizontally translatable table and a vertically translatable set of pipettes. The table accommodates a titer tray having a multiplicity of receptacles to be filled, or holding liquid samples to be diluted, and a rack housing plural rows of disposable tips. During each cycle in a serial dilution process, a fresh set of tips are picked up by the pipettes and used to transfer liquid in a sterile manner from a sample or diluent source to a row of wells in the titer tray, or from one row to a succeeding row of wells where it is mixed with diluent. Thereafter, the tips are discharged back into the rack to maintain sterile conditions during the process. A sensor is provided on the machine to detect whether all of the tips in each set are disengaged and another set successfully picked up.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.