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:
Aug. 16, 2016
Filed:
Oct. 14, 2011
Kazumi Kozawa, Fujimino, JP;
Kosuke Ando, Fujimino, JP;
Harutoshi Tominaga, Fujimino, JP;
Masaru Kyugo, Fujimino, JP;
Daisuke Sato, Fujimino, JP;
Kazumi Kozawa, Fujimino, JP;
Kosuke Ando, Fujimino, JP;
Harutoshi Tominaga, Fujimino, JP;
Masaru Kyugo, Fujimino, JP;
Daisuke Sato, Fujimino, JP;
NISSHIN SEIFUN GROUP INC., Tokyo, JP;
Abstract
A powder classifying device includes a plurality of powder classifiers that impart a whirling motion to powder with whirling gas streams to classify the powder into coarse powder and fine powder, a gas supply source that supplies the plurality of powder classifiers with gas for generating the whirling gas stream, a powder supplier that supplies the plurality of powder classifiers with powder having a particle size distribution, a fine powder collecting section that collects fine powder classified by each of the plurality of powder classifiers, a coarse powder recovery section that recovers coarse powder classified by each of the plurality of powder classifiers, and a controller that controls flow rates of gases supplied to the plurality of powder classifiers so that a classification point is substantially equal among the plurality of powder classifiers.