Invention Grant
- Patent Title: Pulverizing and coarse powder classifying apparatus and fine powder classifying apparatus
- Patent Title (中): 粉碎和粗粉分级设备和细粉分选设备
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Application No.: US12600345Application Date: 2008-05-14
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Publication No.: US08096492B2Publication Date: 2012-01-17
- Inventor: Nobuyasu Makino , Kouji Noge , Kenta Kawasumi
- Applicant: Nobuyasu Makino , Kouji Noge , Kenta Kawasumi
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-129357 20070515
- International Application: PCT/JP2008/059293 WO 20080514
- International Announcement: WO2008/143267 WO 20081127
- Main IPC: B02C23/10
- IPC: B02C23/10 ; B07B7/00

Abstract:
A pulverizing and coarse powder classifying apparatus including: a mechanical pulverizer that pulverizes a powder raw material, a cyclone that collects pulverized powder, and a coarse powder classifier that separates coarse powder from the collected powder, wherein the coarse powder classifier is a cyclone classifier including a dispersion chamber equipped with a center core and used for dispersing the powder, and a classification chamber equipped with a separator core, and wherein the center core has at its center a fine powder discharge pipe.
Public/Granted literature
- US20100170973A1 PULVERIZING AND COARSE POWDER CLASSIFYING APPARATUS AND FINE POWDER CLASSIFYING APPARATUS Public/Granted day:2010-07-08
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