Flow-no-flow tester

An instrument for measuring certain physical properties of a sample of particulate material so that the flow characteristics of the material can be determined includes an improved compaction assembly having an upper piston that is surrounded by a retractable sleeve and further includes an improved t...

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Bibliographic Details
Main Authors JOHANSON; KERRY D, COX; BRIAN D, JOHANSON; JERRY R
Format Patent
LanguageEnglish
Published 01.03.1994
Edition5
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:An instrument for measuring certain physical properties of a sample of particulate material so that the flow characteristics of the material can be determined includes an improved compaction assembly having an upper piston that is surrounded by a retractable sleeve and further includes an improved test cell having cylindrical walls, having a failure outlet smaller than the diameter of the failure piston, and having a false bottom that can easily be removed from beneath a sample of compacted material to permit the failure portion of the test to be carried out. The tester can be used for determining the confined yield strength of the material, its bulk density, and its permeability.
Bibliography:Application Number: US19910781018