Device for scavenging metal from earth deposits

Details Device for scavenging metal from earth deposits Device for scavenging metal from earth deposits

1986-10-29

1988-01-05

Reeves, Robert B.

Classifying, separating, and assorting solids

Precedent preparation of items or materials to facilitate...

Selective differentiation

209214, 2092231, 209229, 209549, 324326, B03C 102

Patent

active

047174692

ABSTRACT:
A metal scavenging device is disclosed which includes a frame carrying a plurality of generally parallel spaced-apart scavenger elements. In one embodiment the elements are comprised of flat plates having parallel walls. In another embodiment the elements are comprised of plates having inclined walls with the walls adjacent plates forming V-shaped spaces. In another embodiment the elements are comprised of elongate cylinders. A control circuit is provided to apply electrical charges of opposite polarities to adjacent plates. The circuit is closed when metal bodies contact adjacent surfaces of the plates. Current flow through the bodies creates a magnetic field, and strong permanent magnets provide a flux attracting the field about the bodies which are wedged and captured between the plates. The circuit includes a normally closed circuit breaker switch together with an indicator bulb which provides a visual signal when a metal body makes contact between the plates.

REFERENCES:
patent: 412924 (1889-10-01), Kester
patent: 1885717 (1932-11-01), Harris
patent: 2636917 (1953-04-01), Law
patent: 2792115 (1957-05-01), Medearis
patent: 4017386 (1977-04-01), Barry

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