Classifying – separating – and assorting solids – Plural – diverse separating operations – Sifting and stratifying
Patent
1984-01-16
1986-06-03
Lutter, Frank W.
Classifying, separating, and assorting solids
Plural, diverse separating operations
Sifting and stratifying
209458, 209500, 209507, B03B 554
Patent
active
045928339
ABSTRACT:
A portable sluice box for classification of mineral particulate from detritus or placer deposits containing the same is comprised of an infeed table including upstanding sidewalls and a bottom wall for receiving and confining a charge of mineral-containing deposits for fluid compelled movement along a path lying in a material handling plane generally coincident with the bottom wall of the table; a classification table member, including upstanding sidewalls and a foraminous separation plate having downwardly depending, opposed marginal skirts for proximal engagement with the sidewalls of the separation table interiorly thereof, the separation plate also lying within the material handling plane; a plurality of riffles disposed transversely in a laterally and longitudinally extending spaced array between the skirts, defining a series of upper flow channels intermediate the separation plate and the top edge of the riffles and a lower, mat channel intermediate the bottom wall of the classification table and the bottom edges of the riffles in order to receive a mat; and an inlet channel at the juncture of the infeed table and the classification table for admitting water along a flow path through the flow channels from a location beneath the material handling plane.
REFERENCES:
patent: 263131 (1882-08-01), Edison
patent: 928870 (1909-07-01), LaPoint
patent: 967745 (1910-08-01), Erickson
patent: 1123188 (1914-12-01), Green
patent: 1286185 (1918-11-01), Mackie
patent: 3799415 (1974-03-01), Tidd
patent: 3950246 (1976-04-01), Klefisch
Bond William
Lutter Frank W.
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