Title:
Method And Apparatus For Automatically Fractionating A Sample Of Particulate Material Into Discrete Size Fractions

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dc.contributor.patentcreator Orr Jr., Clyde
dc.date.accessioned 2017-05-12T14:27:03Z
dc.date.available 2017-05-12T14:27:03Z
dc.date.filed 10/31/1977
dc.date.issued 1/23/1979
dc.description.abstract A fractionating apparatus under microprocessor control including a tumbler having a series of screens of progressively larger openings around its periphery. A sample of particulate material is passed successively through each of the screens by incremental rotation of the tumbler. To aid in classifying the fractions, a spray of fluid is projected against the screens and a rocking motion is imparted to the tumbler. The smallest fraction, not being retained, is entrained in a moving stream of fluid and passed directly to a porous weighing member. When this entire fraction is deposited and weighed, the next larger fraction is accumulated in the weighing member. These individual weights and their sum are recorded and from them size percentages are computed.
dc.description.assignee Georgia Tech Research Institute
dc.identifier.cpc G01N5/00
dc.identifier.cpc B07B1/24
dc.identifier.patentapplicationnumber 05/847087
dc.identifier.patentnumber 4135388
dc.identifier.uri http://hdl.handle.net/1853/57154
dc.identifier.uspc 73/865.5
dc.title Method And Apparatus For Automatically Fractionating A Sample Of Particulate Material Into Discrete Size Fractions
dc.type Text
dc.type.genre Patent
dspace.entity.type Publication
local.contributor.corporatename Georgia Institute of Technology
local.relation.ispartofseries Georgia Tech Patents
relation.isOrgUnitOfPublication cc30e153-7a64-4ae2-9b1d-5436686785e3
relation.isSeriesOfPublication 0f49c79d-4efb-4bd9-b060-5c7f9191b9da
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