Patents by Inventor Raimo Rantanen

Raimo Rantanen 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).

  • Means for forming wood portions from a wood flow
    Patent number: 4871059
    Abstract: Apparatus for dividing a supply of pieces of wood into portions has an aperture for receiving the wood pieces, pivotable grippers for retaining the wood pieces from falling through the aperture, a support which is movable downwardly relative to the aperture to allow a plurality of the wood pieces to descend therewith, the plurality of wood pieces constituting one of the portions, and hydraulic pistons and cylinders for operating the grippers after the downward movement of the support, to retain subsequent wood pieces from falling through the aperture, whereby the remainder of the wood pieces can be temporarily retained from descending with the support.
    Type: Grant
    Filed: September 28, 1987
    Date of Patent: October 3, 1989
    Assignee: Kone Oy
    Inventors: Raimo Rantanen, Pentti Huhta, Hans-Erik Winqvist