Process and device for the differentiation of particles in a medium
US4801543A · kind A · utility
17Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 1984 |
| Grant date | Jan 31, 1989 |
| Priority date | — |
| Expiry date | Jul 18, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/806
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a process and device for facilitating the differentiation of particles in a medium. The particles, which belong to at least two different groups of particles, are enclosed in a chamber bounded by electrodes which produce a rotating electrical field. A means for producing two rotating electrical fields having opposite directions of rotation and variable rotational frequency is provided to be attached to the electrodes. The particles exposed to the rotating electrical field forces with opposite directions of rotation can be differentiated on the basis of their rotational behavior.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.