Patents by Inventor Harvey Stan Ball

Harvey Stan Ball 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).

  • Sprocket with indentations forming hydrodynamic bearings
    Patent number: 5924945
    Abstract: A nose sprocket for a chain saw guide bar, where the bottom part of the teeth or the outermost part of the central region or both have indentations with softly inclined trailing edges, acting as hydrodynamical bearings to keep the sprocket centered between the side plates of the guide bar.
    Type: Grant
    Filed: December 3, 1996
    Date of Patent: July 20, 1999
    Assignee: Sandvik AB
    Inventor: Harvey Stan Ball