Patents Assigned to Grafon AG
  • Patent number: 4497101
    Abstract: The invention relates to an apparatus for manufacturing a three-dimensional, shaped graphite electrode (3) utilizing a three-dimensional, shaped file (4), moved toward one another (filing stroke) while executing an orbital relative movement between the shaped file and the three-dimensional, shaped electrode blank until such time as the contour of the three-dimensional, shaped electrode corresponds, with tolerance, to a negative copy of the contour of the shaped file. During the filing process, graphite particles filed off by the shaped file are flushed out of the working gap (7) formed between the shaped file and the three-dimensional, shaped electrode with the aid of a flushing fluid.
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: February 5, 1985
    Assignee: Grafon AG
    Inventor: Rolf Schrader