Patents by Inventor Ian J. Doane

Ian J. Doane 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).

  • Filament clamp for a vegetation trimmer
    Patent number: 8176639
    Abstract: A vegetation trimmer with a spool and hub assembly has a cutting filament wound around the spool. The free end of the filament extends through an aperture in the hub into the cutting plane. The spool and hub are rotated at a high rate to allow the filament to cut vegetation. The spool includes a plurality of arms which engage with arms on the hub. When the spool is acted upon, the arms on the spool disengage with the arms on the hub to permit relative rotation of the spool to the hub to feed additional filament into the cutting plane. An indexing feature is used to regulate the amount of additional cutting filament that is allowed to be fed into the cutting plane.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: May 15, 2012
    Inventors: Ian J. Doane, James C. Doane
  • Filament Clamp for a Vegetation Trimmer
    Publication number: 20100287780
    Abstract: A vegetation trimmer with a spool and hub assembly has a cutting filament wound around the spool. The free end of the filament extends through an aperture in the hub into the cutting plane. The spool and hub are rotated at a high rate to allow the filament to cut vegetation. The spool includes a plurality of arms which engage with arms on the hub. When the spool is acted upon, the arms on the spool disengage with the arms on the hub to permit relative rotation of the spool to the hub to feed additional filament into the cutting plane. An indexing feature is used to regulate the amount of additional cutting filament that is allowed to be fed into the cutting plane.
    Type: Application
    Filed: May 14, 2009
    Publication date: November 18, 2010
    Inventors: Ian J. Doane, James C. Doane