Grain-cleaning machine
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United States of America Patent
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Aug 11, 2020
Grant Date -
Jun 27, 2019
app pub date -
Feb 16, 2017
filing date -
Feb 26, 2016
priority date (Note) -
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Abstract
A grain-cleaning machine for obtaining grains has a desired size which is greater than a lower value and less than or equal to an upper value. The grain-cleaning machine comprises an arrangement of sieves. The arrangement of sieves comprises at least two main sieve levels positioned overlapping each other. Each main sieve level comprises a respective fine sieve followed by a respective grain sieve. At least one lower sieve level comprises a respective lower grain sieve. The at least one lower sieve level being positioned below the main sieve levels. Each fine sieve has a first mesh provided with openings having an opening size which is equal to said lower value, and each grain sieve and each lower grain sieve have a second mesh provided with openings having an opening size which is equal to said upper value.
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