Patents Assigned to Roag
  • Apparatus for removing optical component blanks from a blocking tool
    Patent number: 4432380
    Abstract: Optical lenses mounted by means of a low melting alloy to blocking tools are separated therefrom under influence of heated water and ultrasonic waves and residues of the alloy are removed from the lenses and the blocking tools. The lenses are held in a holding device and the blocking tools are collected in a grid; the mounting material is collected in a sump such that the lenses and blocking tools can be separately removed out of the water. The water and the mounting alloy kept in a liquid state of aggregate are discharged batchwise.
    Type: Grant
    Filed: May 7, 1982
    Date of Patent: February 21, 1984
    Assignee: Roag
    Inventors: Hans R. Ruf, Rolf Quattlander, Max Reichlin, Patrik Hilpert