Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means
Patent
1989-08-10
1992-08-04
Hajec, Donald T.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Condition responsive means controls separating means
209577, 209581, 209585, 209587, 209588, 209643, 209911, 209920, 209934, B07C 5342
Patent
active
051351145
ABSTRACT:
An apparatus for evaluating the grade of rice grains includes a grain supply unit, vibrating troughs on which the rice grains run in their longitudinal posture, flow-down troughs having slits each opening to each of the flow-down troughs, a reflected light measuring unit having its light sources and its detecting element for detecting the amount of the light reflected from the rice grains, a transmitted light measuring unit having its light sources and its detecting element for detecting the amount of the light transmitted through the rice grains at the positions of the slits, and a calculation control unit for digitally calculating the values measured at the reflected light measuring unit and the transmitted light measuring unit for evaluating the rice grains into a plurality of grades. The light sources for reflection may be of visible light and the light source for transmission may be of infrared light. Also, it is possible to use a single unit, namely, a reflected and transmitted light measuring unit, having a reflected light detecting element and a transmitted light detecting element for measuring both the reflected light amount and the transmitted light amount from the rice grains at the same positions of the slits.
REFERENCES:
patent: 3097743 (1963-07-01), Scholten et al.
patent: 3685650 (1972-08-01), Walther et al.
patent: 4057352 (1977-11-01), Babb
patent: 4454029 (1984-06-01), Codding
Mitoma Yasuharu
Satake Satoru
Satake Toshihiko
Hajec Donald T.
Satake Engineering Co. Ltd.
Wacyra Edward M.
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