Method and apparatus for determining the size distribution of tobacco
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United States of America Statutory Invention Reg
Stats
-
Mar 4, 1986
Grant Date -
N/A
app pub date -
Jan 10, 1983
filing date -
Jan 10, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Tobacco is graded by size by separating a sample into size fractions using a rotary drum screen. The sample is characterized by two distribution curves, one for a finer portion and the other for a coarser portion. The crossing point of logarithmic plots of the percentage by weight vs. particle size distributions of the two portions provides a precise and sensitive descriptor, which can be termed as a 'percent desirable fraction,' for grading the size characteristics of threshed or cut tobacco.
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