Patents by Inventor John Irven Tolhurst

John Irven Tolhurst 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).

  • Patent number: 9067637
    Abstract: Embodiments of the present invention comprise a folding handlebar to allow the rider to adopt an aerodynamic riding position without superfluous bars protruding left and right and a control system so the rider has full access to braking and gear changing whether riding in the aero or non aero position.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: June 30, 2015
    Inventor: John Irven Tolhurst
  • Publication number: 20120272777
    Abstract: Embodiments of the present invention comprise a folding handlebar to allow the rider to adopt an aerodynamic riding position without superfluous bars protruding left and right and a control system so the rider has full access to braking and gear changing whether riding in the aero or non aero position.
    Type: Application
    Filed: April 28, 2011
    Publication date: November 1, 2012
    Inventor: John Irven Tolhurst
  • Patent number: 7753388
    Abstract: Embodiments of the present invention comprise a lightweight front wheel drive recumbent road bicycle and an associated frame. A front triangle is provided to which the drive train of a standard road group can be attached and utilized. A telescoping tube assembly is provided in the front triangle to permit the distance of a bottom bracket and crankset from a seat pan to be adjusted for riders of different sizes. The handlebar is coupled to an end of the telescoping tube assembly and no traditional handlebar stem attached to a steering tube is utilized, so that the structure provides maximum stiffness to better capture the input of the arms and upper body when maximum power is required. The seat pan and a seat back are integrated with the main frame truss structure to help ensure the maximum transfer of the rider's energy to the drive train.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: July 13, 2010
    Inventor: John Irven Tolhurst
  • Publication number: 20090072511
    Abstract: Embodiments of the present invention comprise a lightweight front wheel drive recumbent road bicycle and an associated frame. A front triangle is provided to which the drive train of a standard road group can be attached and utilized. A telescoping tube assembly is provided in the front triangle to permit the distance of a bottom bracket and crankset from a seat pan to be adjusted for riders of different sizes. The handlebar is coupled to an end of the telescoping tube assembly and no traditional handlebar stem attached to a steering tube is utilized, so that the structure provides maximum stiffness to better capture the input of the arms and upper body when maximum power is required. The seat pan and a seat back are integrated with the main frame truss structure to help ensure the maximum transfer of the rider's energy to the drive train.
    Type: Application
    Filed: September 18, 2007
    Publication date: March 19, 2009
    Inventor: John Irven Tolhurst
  • Patent number: D619050
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: July 6, 2010
    Inventors: John Irven Tolhurst, Ronald Ian Witt