Patents by Inventor Curtis Wayne Detwiler

Curtis Wayne Detwiler 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).

  • Split bottom bracket
    Patent number: 7762571
    Abstract: A bottom bracket assembly for use on a bicycle, the assembly provided as a split bracket assembly with an upper portion formed integrally with the bicycle frame and a lower portion detachably connectable to the upper portion, the lower portion completely removable from the upper portion. The bottom bracket assembly provided to capture a crank shaft therein with associated bearings to facilitate the rotation of the crank shaft assembly.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: July 27, 2010
    Assignee: Cannondale Bicycle Corporation
    Inventors: Christopher P. Dodman, Curtis Wayne Detwiler
  • Composite Crank Assembly
    Publication number: 20090056496
    Abstract: A crank assembly formed as a unitary composite structure, the crank arms and crank shaft being hollow to provide maximum weight reduction, the crank arms being over-sized to provide the necessary stiffness and strength. The unitary composite crank assembly may further include a crank claw integrally formed with the crank assembly. Additionally, a spider may be integrally formed with the crank assembly reducing the amount of parts for the assembly, increasing stiffness and reducing overall weight.
    Type: Application
    Filed: September 4, 2007
    Publication date: March 5, 2009
    Inventors: Christopher P. Dodman, Curtis Wayne Detwiler
  • SPLIT BOTTOM BRACKET
    Publication number: 20080253708
    Abstract: A bottom bracket assembly for use on a bicycle, the assembly provided as a split bracket assembly with an upper portion formed integrally with the bicycle frame and a lower portion detachably connectable to the upper portion, the lower portion completely removable from the upper portion. The bottom bracket assembly provided to capture a crank shaft therein with associated bearings to facilitate the rotation of the crank shaft assembly.
    Type: Application
    Filed: April 13, 2007
    Publication date: October 16, 2008
    Inventors: Christopher P. Dodman, Curtis Wayne Detwiler