Device for controlled metering and mixing of several active liquids
US9422070B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 10, 2011 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Oct 17, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F2101/32
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An automatic or semiautomatic device for the controlled metering and mixing of a plurality of active liquid substances for plants, includes elements for selectively sampling the substances in corresponding containers and moreover includes a fluid transfer element and, elements for metering, mixing, and diluting the sampled or transferred amounts of the liquid substance(s). The device also includes a controlling and managing unit that controls the sampling and transferring element and is associated with measurement elements and an element for controlling the flow of fluids within the valve-type device. The measurement elements include an element, advantageous for sequential use, for measuring a basic volume of a sampled concentrated liquid substance, the volume needing to be mixed and/or diluted. The measurement elements moreover include an element for continuously measuring the final volume of the metered solution obtained by diluting, after metering, the concentrated liquid substance or the mixture of concentrated liquid substances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.