Patents Assigned to AB Hedemora Verkstalder
  • Apparatus for removing a fiber layer from a rotating disc filter
    Patent number: 4519910
    Abstract: An apparatus for removing a fiber layer from a rotating disc filter consisting of a number of filter discs mounted side by side on a common shaft includes gas or liquid nozzles for said removal. The spray nozzles are rigidly connected to slide shoes, each of which is guided by a guide rail positioned about the periphery of each filter disc. The slide shoe is arranged with play relative to the guide rail and is suspended as a pendulum.
    Type: Grant
    Filed: July 8, 1983
    Date of Patent: May 28, 1985
    Assignee: AB Hedemora Verkstalder
    Inventors: Samuel Ragnegard, Kent Strid, Goran Sundkvist