Patents by Inventor Nils-Erik Pahlsson

Nils-Erik Pahlsson 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).

  • Patent number: 4257461
    Abstract: The total force required for feeding a tree through a delimbing machine is provided simultaneously by the combined actions of feed rolls and a longitudinally displaceable beam. The feed rolls are mounted on the frame of the machine and are movable towards and away from the tree trunk that is to be delimbed. The beam has gripping means for inserting the tree between the feed rolls. In one embodiment of the invention, at least one of the feed rolls is formed in two adjacent sections with one of the sections having projections on the periphery thereof and the other of the sections being provided with a resilient surface in order to minimize damage to the wood.
    Type: Grant
    Filed: April 4, 1979
    Date of Patent: March 24, 1981
    Assignee: Kockums Industri AB
    Inventors: Percy Wangeby, Nils-Erik Pahlsson