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US 6,307,170 B1Granted
Separation of particles dispersed in liquid
AssigneeSecretary of Agency of Industrial Science and Technology
InventorsTatsuya Oki, Hiroki Yotsumoto
Life of this patent
Estimating the term…
Abstract
A device for capturing negatively or positively charged fine particles dispersed in a liquid includes a rotor having an outer surface charged in a polarity opposite to the particles and arranged to be rotated. By rotating the rotor while being maintained in contact with the liquid, the particles are captured on the outer surface thereof. Control of the rotational speed of the rotor makes it possible to selectively separate particles with desired particle sizes.
Claims7
A device for capturing negatively or positively charged particles dispersed in a liquid, comprising:
- a rotor in the form of a cylinder having a circular cross-section and defining a central, horizontally oriented axis, said rotor having an outer cylindrical surface charged in a polarity opposite to the particles and arranged so that a lower portion of said outer surface is in contact with said liquid and an upper portion of said outer surface is positioned above surface level of said liquid;
- drive means for rotating said rotor, whereby said particles are captured on and carried by said outer surface;
- and
- a scraper positioned for removing, by scraping, the particles carried by said outer surface above the level of said liquid.
1 more element
Dependencies are inferred from the claim text.