Kreeger sluice

摘要

A sluice box is described comprising two walls, and a plurality of riffles. Riffles can have a first portion that extends below the bottom panel of a sluice box (or the bottom of a flow), and a second portion that extends above the bottom panel of a sluice box (or the bottom of a flow). By creating a catch in a riffle by having a portion of the riffle extend below a bottom panel of a sluice box, heavier minerals are not washed away as quickly, if at all, as with other sluices.

主权项

1. An apparatus comprising:
a sluice box having a bottom panel; and a plurality of riffles located at the bottom panel, wherein a riffle comprises:
a descending wall having a first end and a second end, wherein the first end of the descending wall joins the bottom panel, and wherein the second end of the descending wall extends downward below the bottom panel at a predetermined angle; anda shear wall having a first end and a second end, wherein the first end of the shear wall joins the second end of the descending wall, and wherein the second end of the shear wall extends upward until above the bottom panel.