Patents Represented by Attorney Hans Berma
  • Patent number: 4148370
    Abstract: The magnet system of a top-loading precision balance with electromagnetic load compensation is fixedly fastened in an aluminum alloy frame constituting the fixed link in the parallelogram suspension for the weighing pan. Distortion of the frame under thermal stresses due to the different coefficients of expansion of the ferrous metal of the magnet system and the light metal of the frame is prevented by openings in the frame walls spacedly surrounding the portions of the frame wall fixedly fastened to the magnet system.
    Type: Grant
    Filed: November 8, 1977
    Date of Patent: April 10, 1979
    Assignee: Mettler Instrumente AG
    Inventors: Paul Luchinger, Ernst Strickler