Patent · US Expired

Process and device for the differentiation of particles in a medium

US4634669A · kind A · utility

3Cited by

1References

4Claims

0Family size

Assignee

Kernforschungsanlage Lulich Gesellschaft mit beschrankter Haftung · DE

Inventors

William M. Arnold · Bristol, US
Ulrich Zimmermann · Waldbrunn, DE

Key dates

Filing date	Jul 18, 1984
Grant date	Jan 6, 1987
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 are exposed to a rotating electrical field of variable rotational frequency. By providing a means for adjusting the frequency of the rotating fields, the particles can be caused to rotate in different directions thereby facilitating differentiation of particles belonging to different groups of particles. An apparatus for implementing this process includes at least three electrodes which are arranged so as to form a space therebetween. A device for producing a rotating field of variable rotational frequency is connected to the electrodes.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.