Patents by Inventor Don Cotton

Don Cotton 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).

  • Lawnmower blade sharpener
    Patent number: 7503835
    Abstract: In one embodiment, a method of sharpening reel blades on a lawnmower reel includes positioning a grinding wheel in contact with the reel, rotating the grinding wheel about an axis of rotation, linearly translating the grinding wheel along a longitudinal path. and rotating the reel about its longitudinal axis. The axis of rotation of the grinding wheel is transverse to a longitudinal axis of the reel.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: March 17, 2009
    Inventor: Don Cotton
  • Lawnmower Blade Sharpener
    Publication number: 20070184760
    Abstract: In one embodiment, a method of sharpening reel blades on a lawnmower reel includes positioning a grinding wheel in contact with the reel, rotating the grinding wheel about an axis of rotation, linearly translating the grinding wheel along a longitudinal path. and rotating the reel about its longitudinal axis. The axis of rotation of the grinding wheel is transverse to a longitudinal axis of the reel.
    Type: Application
    Filed: February 7, 2007
    Publication date: August 9, 2007
    Inventor: Don Cotton