Patents by Inventor Lars Ojvind Bruun

Lars Ojvind Bruun has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of forest harvesting and a machine for performing said method
    Patent number: 4114666
    Abstract: A method of felling and processing trees with a machine with a boom swingable about a vertical axis at the front end of the machine. The boom is extended in front of the machine and a tree is gripped and cut. The boom is swung while holding the tree vertical to a rearwards position, where the tree is lowered with the top to the rear. The root end is introduced into the rear-facing feed end of a processing unit on the machine. During processing, the tree is fed in the direction towards the front end of the machine.
    Type: Grant
    Filed: June 14, 1976
    Date of Patent: September 19, 1978
    Assignee: Volvo BM AB
    Inventor: Lars Ojvind Bruun
  • 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