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Title:
APPARATUS FOR SEPARATING PARTICLES OF COHESIVE MATERIAL ACCORDING TO SIZE AND PROCESS
Document Type and Number:
WIPO Patent Application WO2000033979
Kind Code:
A9
Abstract:
Milling/sizing apparatus (12) which includes individual and/or nested sieves (20) each of which may also include a quantity of beads, disks and/or other geometric or non-geometric shapes (56). The sieves (20) can be rotated, vibrated or agitated in any and all combinations by various methods to achieve independently horizontal rotation and vertical reciprocation (similar to a merry-go-round) to efficiently segregate, size or mill cohesive and polydisperse powder particles to specific size ranges. The invention also contemplates a method for using the apparatus in the sizing and quantification of aggregated particles of cohesive disperse powders.

Inventors:
CAPPOLA MICHAEL L
Application Number:
PCT/US1999/028797
Publication Date:
August 22, 2002
Filing Date:
December 07, 1999
Export Citation:
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Assignee:
BOEHRINGER INGELHEIM PHARMA (US)
International Classes:
A61K9/14; A61K31/138; A61K31/5513; A61P9/06; A61P43/00; A23L5/30; B02C17/14; B07B1/00; B07B1/06; B07B1/08; B07B1/28; B07B1/34; B07B1/36; B07B1/38; B07B1/42; B07B1/46; B07B1/54; (IPC1-7): B07B1/38; B07B1/36; B07B1/28; B07B1/54; B07B1/46
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