Patents by Inventor Craig A. Caffey

Craig A. Caffey 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).

  • Rotary cutting head
    Patent number: 5615543
    Abstract: A rotary cutting head adapted for attachment to a conventional line trimmer including a cutting disk having a circular plate and a peripheral side wall integral with the circular plate. The peripheral side wall has a pair of integral gussets, each having a pair of radial bores passing therethrough. A flexible cutting filament is frictionally engaged within each pair of radial bores such that one end of the cutting filament extends outwardly from the peripheral side wall.
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: April 1, 1997
    Inventors: Hyram J. Caffey, Craig A. Caffey