Patents by Inventor Robert I. Gardner

Robert I. Gardner 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: 5503419
    Abstract: A close-coupled tandem bicycle is described with a shorter wheelbase than a standard tandem bicycle and with the front and rear riders positioned closer together for easier communication and interaction between them. Two pedal cranks drive the rear wheel through a sprocket-and-chain drive. Both the front and rear passenger can steer the bicycle. A main handlebar with long handgrips extends rearward within easy reach of the rear passenger. A secondary handlebar attaches to the main handlebar and extends in front of it for use by the front passenger. The height and forward extension of the secondary handlebar is adjustable independently of the main handlebar so that both passengers can adjust the seat and the handlebars to their liking. The tiding positions can be adjusted to allow two riders of different sizes, such as a child and an adult, to ride together in comfort.
    Type: Grant
    Filed: May 20, 1994
    Date of Patent: April 2, 1996
    Inventor: Robert I. Gardner