Patents by Inventor Charles W. Sherberne

Charles W. Sherberne 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: 4147469
    Abstract: A paddle blade adapted to be mounted to a tubular handle for use as a kayak or canoe paddle. The paddle blade is replaceable and includes a blade body with an elongated recess having a cylindrical end cavity adapted to receive the handle. A tubular element is located within the recess and the space between the element and the recess is filled with reinforcement material. The blade is curved and the tubular element is bent to fit within the longitudinally angulated portions of the recess in the blade body. The bend in the element is located against the inner wall of the recess and the adjacent end of the handle so that operating forces upon the paddle blade are transmitted directly to the handle in these areas.
    Type: Grant
    Filed: October 13, 1977
    Date of Patent: April 3, 1979
    Inventor: Charles W. Sherberne