Classifying – separating – and assorting solids – Plural – diverse separating operations – Sifting and stratifying
Patent
1982-07-19
1984-09-18
Lutter, Frank W.
Classifying, separating, and assorting solids
Plural, diverse separating operations
Sifting and stratifying
209240, 209248, 209490, 209493, B03B 700, B07B 104
Patent
active
044722699
ABSTRACT:
A sluice box classifier for a sluice box of a gold mining dredge includes a trough and a rim secured to an underside of the trough. The rim anchors the trough to a standard size container. The trough is formed of four walls and a bottom, and is at least as wide as a lower end portion of the sluice box from which collected overburden is received. The bottom includes a center panel and two floor panels which slope upwardly from opposite sides of the center panel to meet opposite sidewalls of the trough. The floor panels funnel overburden deposited into the trough from the sluice box to the center panel where a plurality of openings in the center panel allows the smaller pieces of overburden to pass through into the container. A portion of a front wall of the trough is bent outwardly of the trough to cooperate with an angle member so as to form a slot which connects the trough to the sluice box.
REFERENCES:
patent: 520113 (1894-05-01), Carstein
patent: 881767 (1908-03-01), Bostwick
patent: 969659 (1909-04-01), Sackett
patent: 1948797 (1932-07-01), Nicolai
patent: 2091620 (1933-11-01), Williams
patent: 4319994 (1982-03-01), Morgan
D & K Detector Sales Inc., Catalog, p. 18, 13809 S.E. Division, Portland, Oregon 97236.
"Jerry Keene's Gold in a Campground" Keene Engineering Inc., Northridge, Ca., pp. 17,38,47.
Bond Wm.
D & K Detector Sales, Inc.
Lutter Frank W.
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