Method and apparatus for dispensing a plurality of measured quantities of the same liquid
US5878923A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1997 |
| Grant date | Mar 9, 1999 |
| Priority date | — |
| Expiry date | Jul 7, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F11/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to apparatus for simultaneously dispensing a plurality of measured quantities of a liquid, the apparatus comprising: PA1 a slide-valve body, a succession of liquid accumulation chambers, respective expulsion gas feed channels associated with said chambers, a selector member movable in said housing between a filling position and a dispensing position, and sealing structure placed in said housing between the slide-valve body and the selector member. When the selector member is in the filling position, liquid flows through the various chambers in succession, and when the selector member is in the dispensing position, the liquid contained within each chamber can flow out under the action of said expulsion gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.