Patents by Inventor Lance Canfield

Lance Canfield 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).

  • Suspension system for wheeled vehicles
    Patent number: 9061729
    Abstract: A suspension system for supporting a frame of a vehicle on at least one wheel that is coupled via a chain to a chain ring on the frame. The suspension system includes a structural member supporting an axle of the wheel, a first linkage arm connecting the structural member to the frame, a second linkage arm connecting the structural member to the frame, and a shock absorber coupled between the frame and one of the structural member, the first linkage arm and the second linkage arm. Additionally, the center of curvature (CC) of the axle of the wheel is located within a predetermined radius of a tangent contact point between a tension segment of the chain and the chain ring throughout a range motion of the suspension system.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: June 23, 2015
    Inventors: Christopher Canfield, Lance Canfield
  • SUSPENSION SYSTEM FOR WHEELED VEHICLES
    Publication number: 20140042726
    Abstract: A suspension system for supporting a frame of a vehicle on at least one wheel that is coupled via a chain to a chain ring on the frame. The suspension system includes a structural member supporting an axle of the wheel, a first linkage arm connecting the structural member to the frame, a second linkage arm connecting the structural member to the frame, and a shock absorber coupled between the frame and one of the structural member, the first linkage arm and the second linkage arm. Additionally, the center of curvature (CC) of the axle of the wheel is located within a predetermined radius of a tangent contact point between a tension segment of the chain and the chain ring throughout a range motion of the suspension system.
    Type: Application
    Filed: May 16, 2013
    Publication date: February 13, 2014
    Inventors: Christopher Canfield, Lance Canfield
  • Bicycle pedal
    Patent number: D615003
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: May 4, 2010
    Inventors: Christopher Canfield, Lance Canfield
  • Bicycle pedal
    Patent number: D667348
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: September 18, 2012
    Inventors: Christopher Canfield, Lance Canfield