Patent ID: 7147174

Claim:
A device for comminuting material comprising: first and second mating sections; said mating sections when mated forming an enclosed interior chamber with said sections capable of movement relative to each other; said first mating section having a first set of a plurality of pins extending from a base of first mating section and into the interior of said chamber; said second mating section having a second set of plurality of pins extending from a base of second mating section and into the interior of said chamber; said first set of pins interdigitating with said second set of pins, wherein movement of the first and second mating sections relative to one another causes comminution of the material when placed in the chamber; said first and second mating sections are cylindrical; said first section has a diameter smaller than the diameter of said second section, such that said first section slidably fits into said second section and allows movement of said first section relative to said second section; said second mating section having a rim; and a washer positioned between said base of said first mating section and said rim of said second mating section.