Patents by Inventor Doug Short

Doug Short 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).

  • Patent number: 5497603
    Abstract: A gang mower for garden tractors includes a frame, a hitch and either three, five or seven reel-type mower units attached to the frame. The frame is attached to each of the mower units higher than the rear roller axis of the mower unit, lower than the forward wheel axis of the mower unit and a sufficient distance away from the forward axis that a majority of the frame's weight is supported by the rollers rather than the forward wheels of the reel-type mowers. In action, the frame pushes the reel-type mowers forward when the frame is pulled forward by a garden tractor. The attachment and distribution of weight assures that the rear rollers of each of the individual mower units is always in contact with the ground. At the same time, the forward drive wheels are leveraged downward in order to insure sufficient friction to turn the mower blades without the inclusion of unnecessary and undesirable weight.
    Type: Grant
    Filed: January 10, 1995
    Date of Patent: March 12, 1996
    Inventor: Doug Short