Patents by Inventor David Chandler Botto

David Chandler Botto 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).

  • Ram air driven turbine generator battery charging system using control of turbine generator torque to extend the range of an electric vehicle
    Patent number: 8098040
    Abstract: A system and method to convert the ram air energy resulting from the movement of an electric vehicle through the air mass into electric energy to recharge the energy storage devices of the vehicle while minimizing the apparatus caused drag effect on the vehicle, thereby extending the driving range of the vehicle between external charging. At least one ram air driven turbine is positioned within the vehicle, the turbine driving a mechanically coupled generator to charge the battery. Ram air is ducted in the front of the vehicle to cause the turbine generator to rotate and output electrical energy to charge the battery. The effect of variation in vehicle speed on both turbine generator output and turbine caused drag is optimized by adjusting the pitch angle of the turbine blades.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: January 17, 2012
    Inventor: David Chandler Botto