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Cereal separator using size and specific gravity grading

  • US 5,860,531 A
  • Filed: 03/18/1997
  • Issued: 01/19/1999
  • Est. Priority Date: 03/29/1996
  • Status: Expired due to Fees
First Claim
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1. A cereal separation apparatus comprising:

  • a frame;

    size grading means mounted at an upper portion of said frame for grading particles according to a size of the particles;

    oscillating specific gravity grading means mounted at a lower portion of said frame;

    air flow-producing means for producing an air flow for effecting the specific gravity grading; and

    a feed passage for feeding the particles, selected by said size grading means, from said size grading means to said specific gravity grading means;

    wherein said size grading means comprises a perforated, hollow cylinder for grading the particles according to the particle size, and said cylinder is supported on said frame for rotation about an axis of said cylinder;

    wherein said specific gravity grading means is supported on said frame through oscillation support portions;

    wherein said apparatus further comprises rotation drive means for rotating said hollow cylinder, and oscillation drive means for oscillating said specific gravity grading means, said rotation means and said oscillation drive means being operable independent of each other; and

    an air duct connecting said specific gravity grading means to said hollow cylinder so as to pass the air flow, produced by said air flow-producing means, which has passed through said specific gravity grading means, through said hollow cylinder.

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