Patent ID: 8424684

Claim:
A multi-diameter disc assembly, comprising: a first disc having a first diameter, wherein the first disc is configured to prevent materials from falling through a disc screen, and wherein the first disc comprises: a first section having a first interlocking end and a first coupling end, wherein the first interlocking end of the first section includes a first notch extending perpendicular into a first side of the first section and a first locking member that extends from a second side of the first section above the first notch; and a second section having a second interlocking end that interlocks with the first interlocking end and a second coupling end that couples to the first coupling end, wherein the second interlocking end of the second section includes a second notch extending perpendicular into a first side of the second section and configured to slidingly receive the first locking member and a second locking member that extends from a second side of the second section above the second notch and configured to slidingly insert into the first notch; and a second disc having a second diameter larger than the first diameter, wherein the second disc is configured to prevent some of the materials from falling through the disc screen.