Patents by Inventor Robert W. Turpeinen

Robert W. Turpeinen 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).

  • Tree delimbing apparatus
    Patent number: 4738292
    Abstract: A tree delimbing apparatus (10) for removing tree branches, bark, and leaves. Tree stems are extended transversely over a shaft (12) where a sheet-like thread (22) conveys the tree stems longitudinally along the shaft (12). Chains (26) are attached to the shaft (12) and bars (28) are disposed between adjacent turns of the sheet-like thread (22) for removing bark and branches while urging the tree stems to move transversely across the shaft (12).
    Type: Grant
    Filed: April 10, 1987
    Date of Patent: April 19, 1988
    Inventor: Robert W. Turpeinen