Patents Assigned to Resource Recovery Limited
  • Patent number: 4317521
    Abstract: Apparatus and method for sorting scrap metal pieces dependent on the type of metal therein. The apparatus includes a conveyor and a feeding arrangement to feed the scrap metal pieces on to the conveyor, together with an X-ray fluorescence detector to examine each metal piece and determine the type of metal as a result of the characteristic X-rays emitted. A respective control signal is utilized to move pegs on the conveyor so as to permit the respective metal piece to exit from the conveyor along a respective path and to enter a bin for that particular type of metal. In this way scrap metal pieces of different metal are collected in different bins for subsequent processing.
    Type: Grant
    Filed: August 14, 1980
    Date of Patent: March 2, 1982
    Assignee: Resource Recovery Limited
    Inventors: Reginald H. Clark, John D. MacArthur, Michael Sayer, William D. Wilder