Patents by Inventor Norman E. Timbs

Norman E. Timbs 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).

  • Single lever control for variable speed bicycles and the like
    Patent number: 4002350
    Abstract: The interrelation of a vehicle and transmission and brake means therefor which are cooperatively dependent structurally and functionally, wherein a variable speed "stiff-hub" drive adapted particularly to bicycles and comprised of a constant mesh infinitely variable gearing with an input crank shaft and a wheel drive, and a control means which operates in conjunction with a single lever which also comprises the braking force actuator for simultaneous gear ratio and brake control.
    Type: Grant
    Filed: October 16, 1975
    Date of Patent: January 11, 1977
    Inventor: Norman E. Timbs
  • Variable speed drive for bicycles and the like
    Patent number: 3934492
    Abstract: A variable speed "stiff-hub " drive adapted particularly to bicycles and comprised of a constant mesh infinitely variable gearing with an integral input crank shaft projecting axially from opposite ends of an enclosing case, with a drive sprocket at one side of the case and coaxially disposed over one of said crank shaft ends, and having a control means which operates in conjunction with a single lever which also comprises the braking force actuator.
    Type: Grant
    Filed: March 17, 1975
    Date of Patent: January 27, 1976
    Inventor: Norman E. Timbs