Controlling method and a measuring mixer for liquids and powders
US4830508A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 1988 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | May 2, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2499
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A measuring mixer for use with either liquids or powders in which different supply systems supply different stock liquids or powders to a receiving container from supply containers. A continuously variable flow regulator is associated with each supply container. The cumulative weight of the receiving container is measured and compared with a target weight. Then a computation section calculates a desired flow rate based upon both the deviation from the target weight and a time variation thereof. This calculation is preferably done according to fuzzy inference. The desired flow rate is then used to control a selected one of the flow regulators so that the measurement is sequentially performed between supply systems. Optionally, the receiving container can be movable between the different supply systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.