Patents by Inventor Walter P. Leser

Walter P. Leser 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).

  • Linear to rotary drive system for bicycles and similar vehicles
    Patent number: 8215654
    Abstract: A drive system for a bicycle includes first and second drive sprockets, with respective one-way clutches. The drive sprockets are mounted on opposite ends of the bike's drive shaft. First and second idler pulleys are mounted on an upper pulley shaft. The upper pulley shaft mounts on the bike's frame above the rotary drive shaft and at a right angle thereto. A chain is mounted on the drive sprockets and the idler pulleys. A first pedal is attached to the chain between the first drive sprocket and the first idler pulley. A second pedal is attached to the chain between the second linear drive sprocket and the first linear driven idler pulley. First and second linear chain guides are mounted on opposite sides of the frame and disposed next to the chain for guiding portions of the chain and the pedals as they are moved up and down on the bicycle.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: July 10, 2012
    Inventor: Walter P. Leser