Apparatus for distributing sample liquid
US5013529A · kind A · utility
Inventor
Key dates
| Filing date | Feb 6, 1990 |
| Grant date | May 7, 1991 |
| Priority date | — |
| Expiry date | Feb 6, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2035/1069
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for distributing sample liquids from source test tubes into destination test tubes. It has distribution tips and air-supply devices for supplying air to the tips at a low rate. The tips are lowered into the source tubes, while air is flowing from the devices and through the tips. The moment the tips reach the surface levels of the liquids contained in the source tubes, the air pressure changes. When this change is detected, the tips start sucking the liquids from the source tubes. An apparatus similar to the above-mentioned one. It has distribution units each having a tip, a lever having a slit, and pins projecting from the units and inserted in the slit. The lever is rotated, changing the interval between the distribution units to the interval between the source or the destination tubes held in a rack. A similar apparatus which has distribution tips and a tray. The tray is kept away from below the tips while the sample liquids are being sucked into the tips from the source tubes or being distributed from the tips into the destination tubes, and is placed below the tips while the tips are being moved. A similar apparatus which has distribution units each having a tip, …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.