Segregation testing apparatus for powders and granular...

Details Segregation testing apparatus for powders and granular... Segregation testing apparatus for powders and granular...

2005-12-15

2008-03-25

Williams, Hezron (Department: 2856)

Measuring and testing

Sampler, sample handling, etc.

With constituent separation

C073S865500

Reexamination Certificate

active

07347111

ABSTRACT:
A method and apparatus enables testing of sifting segregation of a particulate solid mixture in a storage bin or hopper. The apparatus makes use of a convergently and divergently angled hopper for collecting the mixture. The apparatus further makes use of a minimally-shearing feeder mechanism supplying a desired flow of mixture, with minimal to no sifting segregation, to the angled hopper. A collection mechanism removes samples of the mixture from the angled hopper for analysis with minimal disruption of the particles of the mixture relative to each other. Thus, samples resulting from the testing apparatus, and corresponding method, are highly representative of mixture conditions within a larger storage hopper.

REFERENCES:
patent: 3794164 (1974-02-01), Ginaven
patent: 5429248 (1995-07-01), Le Gigan et al.
patent: 5583304 (1996-12-01), Kalidindi
patent: 6487921 (2002-12-01), Prescott et al.

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