Patent ID: 8708157

Claim:
A material sorter comprising: a. a rigid inclined panel having a top surface, a top portion of said top surface, and an inclined centerline; b. at least one guide rail abutting said top surface and coupled to said rigid inclined panel at an angle to said center line that is not parallel to said center line; c. wherein a load of mixed-density material dumped on said top portion of said inclined plane will move downward to at least partially impact said at least one guide rail, thereby changing a first downward path of lower density material of such mixed-density material differently than a second downward path of higher-density material of such mixed-density material, to assist in sorting such load of mixed-density material; and d. wherein said at least one guide rail comprises at least one rotationally coupled guide rail, operable to rotate slidingly on said top surface of said rigid inclined panel.