Patent ID: 7938347
Filing Date: 2011-05-10
Classification: B02C

Abstract:
1. A shredder comprising: a pair of cooperating first cutters configured to pierce rows of staggered cross-cuts into a material to be shredded, each of the pair of first cutters comprising: a pair of cooperating second cutters, disposed down-stream of the pair of first cutters in the material feed direction, that are configured to form a plurality of strip cuts in the pierced material, each of the pair of second cutters comprising: wherein the pair of cooperating first cutters and the pair of cooperating second cutters are provided in parallel configuration with respect to each other and wherein the first cutting discs and the second cutting discs are positioned adjacent to each other such that the staggered cross-cuts formed by the first cutters are substantially aligned with the strip cuts formed by the second cutters.