Mixing apparatus and method
US4936687A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1988 |
| Grant date | Jun 26, 1990 |
| Priority date | — |
| Expiry date | Nov 23, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F33/451
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus for performing mixing in thin liquid layers containing a suspension of a multiplicity of movable particles of magnetic material. The apparatus includes at least two magnets or magnet systems, of which at least one is an electromagnet. the magnets or magnet systems are arranged in order to provide at least one slit for receiving at least one support containing the thin liquid layer, wherein the magnetic particles are present. When the liquid layer in the support is inserted in the slit, the thin layer will be subjected to the combined magnetic field orginating from the two magnets or magnet systems. The apparatus has a driving source for the electromagnet(s), including a timing device, and a current source. The support device, which fixedly supports the thin liquid layer containing a multiplicity of magnetic particles, is arranged between the magnets in such a manner that the thin layer is subjected to the combined magnetic field of the magnets, which magnetic field alternatingly concentrates and fades out. The invention also provides a method of performing mixing in thin liquid layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.