Patents by Inventor Robert Godfrey Schmertz

Robert Godfrey Schmertz 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).

  • Bicycle drivetrain
    Patent number: 10850800
    Abstract: A bicycle drivetrain including a first shaft and a second shaft which rotate in opposing directions, a first pedal connected to a first pedal crank connected to the first shaft and a second pedal connected to a second pedal crank connected to a second shaft, an engaged first spur gear and second spur gear attached to the first shaft and the second shaft, respectively, a first slip clutch mounted to the first shaft and connected to a main sprocket and a second slip clutch mounted to the second shaft, a first sprocket and a second sprocket having the same direction of rotation and attached to the first slip clutch and the second slip clutch, respectively, a rear sprocket attached to a rear wheel and connected to the main sprocket, and a plurality of mechanical stops which prevent unwanted rotation of the bicycle drivetrain.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: December 1, 2020
    Inventors: John C. Schmertz, Robert Godfrey Schmertz
  • Bicycle Drivetrain
    Publication number: 20180244340
    Abstract: A bicycle drivetrain including a first shaft and a second shaft which rotate in opposing directions, a first pedal connected to a first pedal crank connected to the first shaft and a second pedal connected to a second pedal crank connected to a second shaft, an engaged first spur gear and second spur gear attached to the first shaft and the second shaft, respectively, a first slip clutch mounted to the first shaft and connected to a main sprocket and a second slip clutch mounted to the second shaft, a first sprocket and a second sprocket having the same direction of rotation and attached to the first slip clutch and the second slip clutch, respectively, a rear sprocket attached to a rear wheel and connected to the main sprocket, and a plurality of mechanical stops which prevent unwanted rotation of the bicycle drivetrain.
    Type: Application
    Filed: February 22, 2018
    Publication date: August 30, 2018
    Inventors: John C. Schmertz, Robert Godfrey Schmertz