Tire rubber granulator

A tire rubber granulator for reducing scrap tire rubber into small particles of a pre-determined size comprising:

• a first disk assembly having a first interior surface and a first exterior surface mutually bounded by a first perimeter, said first disk assembly centered on a rotational axis and further comprising:
• at least one first cutting bar, said first cutting bar having at least one cutting edge;
• a first retaining structure centered on the rotational axis and located on the first interior surface, said first retaining structure having a first group of receptacles;
• a plurality of first cutting bars located radially about the rotational axis and interconnected to the first interior surface, wherein each bar in the first plurality of cutting bars extends from the first retaining structure to the first perimeter and where said at least one cutting edge is aligned perpendicular to the rotational axis;
• a first plurality of receiving slots in the first interior surface that retain the first plurality of cutting bars in position;
• a first working plane, said first working plane defined by the cutting edges of the first plurality of cutting bars;
• at least one first curved skirt affixed to the first interior surface adjacent to the first perimeter;
• and
• a first plurality of tapered recesses with contours that are defined by an adjacent pair of first cutting bars in the first plurality of cutting bars, the first skirt, and the first interior surface;
• a second disk assembly having a second interior surface and a second exterior surface mutually bounded by a second perimeter, said second disk assembly centered on the same the rotational axis as the first disk assembly and the second interior surface is in juxtaposition with the first interior surface, said second disk further comprising:
• at least one second cutting bar, said second cutting bar having at least one cutting edge;
• a second retaining structure centered on the rotational axis and located on the second interior surface, said second retaining structure having a second group of receptacles;
• a plurality of second cutting bars differing in number from the number in the plurality of first cutting bars, said plurality of second cutting bars located radially about the rotational axis and interconnected to the second interior surface, wherein each member in the second plurality of cutting bars extends from the second retaining structure to the second perimeter and where said at least one cutting edge is aligned perpendicular to the rotational axis;
• a second plurality of receiving slots in the second interior surface that retain the second plurality of cutting bars in position;
• a second working plane, said second working plane defined by the cutting edges of the second plurality of cutting bars where the second working plane is in juxtaposition with the first working plane and separated by a distance;
• at least one second curved skirt affixed to the second interior surface adjacent to the second perimeter and in juxtaposition to the first curved skirt;
• and
• a second plurality of tapered recesses with contours that are defined by an adjacent pair of second cutting bars in the second plurality cutting bars, the second skirt, and the second interior surface;
• an apparatus interconnected to the tire rubber granulator that causes at least one of the disk assemblies to rotate about the rotational axis;
• a structure in at least one of the disk assemblies that allows scrap tire rubber to be introduced into first and second pluralities of tapered recesses;
• and
• an opening, said opening formed between the first and second curved skirts that allows scrap tire rubber to exit the tire rubber granulator.