Patents by Inventor Robert Shinn

Robert Shinn 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).

  • Automatic slitter blade sharpener
    Patent number: 5941148
    Abstract: A device for automatically sharpening the circular cutting edge of a disk-like blade while it is rotatably mounted in a blade cartridge is disclosed. The sharpener includes a coupling assembly adapted to matingly retain the cartridge in the same manner that it is retained in a slitter machine. A rotary drive assembly is adapted to engage with and rotate the disk-like blade while in the cartridge. A blade sharpening head is adapted to engage and sharpen the disk-like blade as the blade is being rotated by the rotary drive assembly.
    Type: Grant
    Filed: January 16, 1998
    Date of Patent: August 24, 1999
    Assignee: Tidland Corporation
    Inventors: William R. Miller, Richard M. Holbert, Robert Shinn, Semion Stolyar