Patents Assigned to Bruun System AB
  • Tree felling apparatus
    Patent number: 3996981
    Abstract: A preferably tractor-mounted tree felling apparatus comprising two saw chains on guide bars arranged to be moved towards one another to cut through the tree while the latter is gripped by gripping jaws. The two saw chains are arranged to move in the same direction at the tree trunk center with the teeth of the chains somewhat in displaced relation to enable the teeth of one chain to run closely to the teeth of the second chain for improved cutting action.
    Type: Grant
    Filed: November 7, 1974
    Date of Patent: December 14, 1976
    Assignee: Bruun System AB
    Inventor: Lars Ojvind Bruun