Patents Assigned to Grainger Associates
  • Patent number: 5758832
    Abstract: An apparatus and method for recycling glass waste comprising glass and non-glass materials. The apparatus has a device for receiving and presizing the glass waste to produce presized glass waste. A first conveyor receives the presized glass waste and transfers it to a storage hopper. The presized glass waste is then transported to an impact mill via a second conveyor. The rate of movement of the second conveyor is regulated by a control device located within the impact mill. In the impact mill, the glass component of the glass waste is beat off the non-glass component of the glass waste to produce a pulverized mixture. The pulverized mixture is then sent to a screening device via a third conveyor. In the screening device, the glass and non-glass material are separated from the pulverized mixture and collected for reuse.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: June 2, 1998
    Assignee: Grainger Associates
    Inventor: Walter T. Grainger