Patents by Inventor Zachary David Krapfl

Zachary David Krapfl 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
    Patent number: 8469381
    Abstract: A bicycle is provided having a frame with a seat tube and a bottom bracket coupled to one end of the seat tube. A pedal crank shaft is operably coupled to the bottom bracket. A motor is coupled to the bottom bracket and operably coupled to the pedal crank shaft. A battery is removably coupled to the frame and electrically coupled to the motor. A seat having a seat post is removably coupled to the seat tube, wherein the battery is disposed to remain coupled to the frame when the seat post is removed. In another embodiment, a sleeve is positioned with in the seat tube and the seat post is slidingly disposed in the sleeve. In another embodiment, the bicycle includes a clamp having a plurality of clamp pads that engage the seat post to hold the seat in the desired position.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: June 25, 2013
    Assignee: Cycling Sports Group, Inc.
    Inventors: Christopher P. Dodman, Erik Preston Eagleman, Zachary David Krapfl
  • BICYCLE
    Publication number: 20120049483
    Abstract: A bicycle is provided having a frame with a seat tube and a bottom bracket coupled to one end of the seat tube. A pedal crank shaft is operably coupled to the bottom bracket. A motor is coupled to the bottom bracket and operably coupled to the pedal crank shaft. A battery is removably coupled to the frame and electrically coupled to the motor. A seat having a seat post is removably coupled to the seat tube, wherein the battery is disposed to remain coupled to the frame when the seat post is removed. In another embodiment, a sleeve is positioned with in the seat tube and the seat post is slidingly disposed in the sleeve. In another embodiment, the bicycle includes a clamp having a plurality of clamp pads that engage the seat post to hold the seat in the desired position.
    Type: Application
    Filed: August 25, 2011
    Publication date: March 1, 2012
    Applicant: CYCLING SPORTS GROUP, INC.
    Inventors: Christopher P. Dodman, Erik Preston Eagleman, Zachary David Krapfl