US Patent:
20020047062, Apr 25, 2002
Inventors:
Robert Keskula - Holden MA, US
Andrew Casavant - N. Smithfield RI, US
Kenneth Focht - Needham MA, US
International Classification:
B02C018/18
Abstract:
An apparatus is provided for processing (e.g., granulating) industrial materials (e.g., synthetic resin materials). The apparatus has a rotor shaft mounted in the inside of a housing. The rotor shaft has an axis running in a generally horizontal direction. Cutters extend radially from the rotor shaft with some of the cutters extending a distance less than the others. Approximately one-half of a second plurality of cutters are positioned on the rotor shaft between a first cutter and a second cutter of the first plurality of cutters, and approximately the other half of the second plurality of cutters are positioned on the rotor between the second cutter and a third cutter of the first plurality of cutters. The cutters may contain a symmetrical blade portion such that the rotor may be run in both directions, thereby extending the time between required maintenance operations, and minimizing down-time for the apparatus.