The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 23, 2001
Filed:
Jan. 19, 2000
Applicant:
Inventors:
Tatsuya Oki, Tsukuba, JP;
Hiroki Yotsumoto, Tsukuba, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B03C 7/00 ;
U.S. Cl.
CPC ...
B03C 7/00 ;
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.