Measuring and testing – Particle size
Patent
1990-05-07
1991-02-05
Raevis, Robert
Measuring and testing
Particle size
366100, G01N 1502
Patent
active
049894641
ABSTRACT:
A method and apparatus for determining particle size distribution of lightweight material such as shredded expanded polystyrene. An agitator cap assembly initially contains the material and agitates it to avoid clogging, etc. A plurality of sieves are stacked on a receptacle, and the material is driven from the agitator caps through the sieves. The amount of material retained on and passed through the sieves provides a measure of the particle size distribution.
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Allen-Bradley Sonic Sifter Brochure, Allen-Bradley Co., Milwaukee, Wis., Aug., 1965.
Baker William L.
Lemack Kevin S.
Raevis Robert
W. R. Grace & Co.,-Conn.
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