Classifying – separating – and assorting solids – Plural – diverse separating operations – Aqueous suspension – sifting – and stratifying
Patent
1994-04-26
1995-12-19
Terrell, William E.
Classifying, separating, and assorting solids
Plural, diverse separating operations
Aqueous suspension, sifting, and stratifying
209 44, 209159, 209208, 209506, B03B 700
Patent
active
054761778
ABSTRACT:
A material classification device for separation of solid materials, having a relatively high specific gravity, from a stream of fluid and solid material. The device is particularly suited for the extraction of gold from alluvial material. The device generally comprises an open conduit that has a first opening and a second opening therethrough. A container is attached to the bottom of the conduit so that the openings are in fluid flow communication with the container. A portion of the flow of fluid and materials passes through the first opening and is captured in the container. A tube passes into the container with an aperture therein so that a fluid may be passed into the container to agitate the material collected therein freeing the lighter material so that it can exit the container out the second opening.
REFERENCES:
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patent: 727974 (1903-05-01), Klein
patent: 1441571 (1923-01-01), France
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patent: 3950246 (1976-04-01), Klefisch
patent: 5255787 (1993-10-01), Sims
patent: 5366092 (1994-11-01), Schmidt, Sr.
Keene Engineering (catalogue) 1993 Spring-see apparatus on pp. 12, 18 and 31--examples of current state of the art--.
Gold prospector magazine, Mar. 1994, --copy of p. 76 (only).
Nguyen Tuan
Terrell William E.
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