Patents Assigned to Wacker Chemitronic
  • Multiblade inner hole saw for the sawing of crystal rods into thin blades
    Patent number: 4834062
    Abstract: A multi-blade inner hole saw for the sawing of crystal rods or blocks, such as solar cell base material on a silicon base, into thin wafers has saw blades arranged mirror-symmetrically with respect to the bearing on either side of a common drive cylinder. In the sawing operation, the workpieces are sawn synchronously by the saw blades.
    Type: Grant
    Filed: May 26, 1988
    Date of Patent: May 30, 1989
    Assignee: Wacker Chemitronic
    Inventors: Walter Frank, Gerhard Palme