Patents by Inventor Charles E. Filby

Charles E. Filby 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).

  • Sanding tool
    Patent number: 4639989
    Abstract: A sanding tool comprises a plurality of saw blades arranged in spaced relation projecting from a planar surface of a rigid plastics supporting member a distance of the order of 1/8 inch. The spacing of the blades is very much wider than the width of the blade to provide a self-cleaning effect and the plastics member provides a shoulder alongside each of the outermost blades so that the shoulders prevent gouging of the blades.
    Type: Grant
    Filed: April 9, 1985
    Date of Patent: February 3, 1987
    Inventor: Charles E. Filby