Continuous self-cleaning sluice

Details Continuous self-cleaning sluice Continuous self-cleaning sluice

1999-11-12

2001-10-30

Walsh, Donald P. (Department: 3653)

Classifying, separating, and assorting solids

Sorting special items, and certain methods and apparatus for...

Separating means

C209S636000, C209S645000

Reexamination Certificate

active

06308835

ABSTRACT:

BACKGROUND FIELD OF INVENTION
The invention relates generally to the field of sluice boxes.
BACKGROUND OF INVENTION
The field dates back to the 1800's. It was known from that day to this that gold is an extremely heavy metal and that, given a significant opportunity, gravity will draw down heavy materials. The problem with most sluice boxes has been that they operate at very slow oscillations, which effectively generate a slosh effect which moves the gold along with everything else. Applicant has generated a high oscillation device to overcome the shortcomings of the prior art.
SUMMARY & OBJECTS OF THE INVENTION
A first object of the invention is to generate an oscillation of a box with a floor of uniform but uneven contours.
A second object of the invention is to generate an inexpensive automatic sluice box.
A third object of the invention is to provide a box with adjustable levels to increase or decrease the incline as conditions warrant.


REFERENCES:
patent: 3682304 (1972-08-01), Seidel
patent: 3724661 (1973-04-01), Gobatti
patent: 4902428 (1990-02-01), Cohen
patent: 5131996 (1992-07-01), Birkle et al.

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