Classifying apparatus, classifying method, and method for producing toner
US9004285B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2010 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | May 10, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0817
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A classifying apparatus including: a rotor with a plurality of annularly disposed blades, which rotates; and a louver with a plurality of blades which are disposed at an outer circumferential portion of the rotor so as to supply from the outer circumferential portion a fluid for dispersing and classifying a powder material, wherein the powder material is supplied to a gap between the rotor and the louver and centrifugally classified into fine powder and coarse powder, and wherein at least one of the following relationships is satisfied: Relationship (1): α≧50° Relationship (2): D2/D1≧1.17 where α denotes an angle formed between imaginary lines connecting the center of the rotor with both ends of each blade of the louver, D1 denotes a diameter of the rotor, and D2 denotes an inner diameter of the louver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.