Patents Assigned to Maschinenfabrik Helmut Geiger GmbH
  • Electrical fish chasing device
    Patent number: 4580525
    Abstract: An electric fish-scaring device for water inlet and discharge plants includes electrodes positioned below the surface of the water and connected to a voltage supply unit. To enable the device to operate effectively in scaring away fish of different respective sizes, the voltage supply unit is coupled to an automatic control unit for the generation of different voltage pulses.
    Type: Grant
    Filed: September 13, 1984
    Date of Patent: April 8, 1986
    Assignee: Maschinenfabrik Helmut Geiger GmbH
    Inventor: Werner Marzluf