Patents by Inventor Nils E. Lindstrom

Nils E. Lindstrom 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 and apparatus for sawing timber
    Patent number: 4219056
    Abstract: The invention relates to a method and apparatus for sawing logs having a curved longitudinal length to obtain maximum recovery of sawed planks therefrom. There are provided several sawing stations for handling the curved log including edge sawing, heart split sawing along the curved center line of the log and perpendicular to the edge sawed surfaces to produce two sections having curved center cut surfaces, and dividing sawing each section parallel to the center cut surface.
    Type: Grant
    Filed: February 12, 1976
    Date of Patent: August 26, 1980
    Assignee: Vanerskog AB
    Inventor: Nils E. Lindstrom
  • Apparatus for curved sawing of timber
    Patent number: 4144782
    Abstract: Apparatus for sawing of curved-form timber feeds the log past a band saw such that the cut follows the curved form of the log. Spaced guides function to guide the log in a curved-form path through the saw. The guides are displaceable in a direction transversely to the feeding direction of the log depending on the curved form of the log. The guides may comprise guide rollers provided on each side of the log to be forced to the sides of the log.
    Type: Grant
    Filed: February 8, 1977
    Date of Patent: March 20, 1979
    Assignee: Skogsagarnas Vanerindustrier Aktiebolag
    Inventor: Nils E. Lindstrom