Patents Assigned to Stedman Machine Company
  • Patent number: 7854407
    Abstract: The present invention provides an impact crushing apparatus that includes a housing, a chamber defined within the housing, a rotor assembly for receiving material and throwing the material radially outward, and a plurality of anvils positioned around the rotor assembly and configured to break apart the material. The rotor assembly is driven by a drive unit, which is coupled to a shaft. A bearing cartridge encircles the shaft, and the bearing cartridge and drive unit are disposed outside the chamber.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: December 21, 2010
    Assignee: Stedman Machine Company
    Inventors: Jason Potter, Jason Knueven