Patents by Inventor David Taitt

David Taitt 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).

  • Hubs incorporating a variable ratio transmission system
    Patent number: 9688352
    Abstract: A hub comprises a cylindrical, hollow hub member which is mounted to rotate about its axis and accommodated in whose interior is a continuously variable ratio transmission system having an input, which is mounted to rotate about the axis, and an output mounted to rotate with the hub member. The transmission system comprises a single epicyclic gearset including a sun gear in mesh with a plurality of planet gears mounted to rotate about respective planet shafts carried by a common carrier, which is mounted to rotate with the input about the axis. The planet gears are in mesh with an annulus gear, which is connected to rotate with the rotors of first and second electric motor/generators, respectively. The electrical connections of the stators of the two motor/generators are connected by a controller arranged to control the transmission of power from one motor/generator to the other.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: June 27, 2017
    Assignee: Nexxtdrive Limited
    Inventors: David Taitt, Linan Gong
  • HUBS INCORPORATING A VARIABLE RATIO TRANSMISSION SYSTEM
    Publication number: 20150291256
    Abstract: A hub comprises a cylindrical, hollow hub member which is mounted to rotate about its axis and accommodated in whose interior is a continuously variable ratio transmission system having an input, which is mounted to rotate about the axis, and an output mounted to rotate with the hub member. The transmission system comprises a single epicyclic gearset including a sun gear in mesh with a plurality of planet gears mounted to rotate about respective planet shafts carried by a common carrier, which is mounted to rotate with the input about the axis. The planet gears are in mesh with an annulus gear, which is connected to rotate with the rotors of first and second electric motor/generators, respectively. The electrical connections of the stators of the two motor/generators are connected by a controller arranged to control the transmission of power from one motor/generator to the other.
    Type: Application
    Filed: October 9, 2013
    Publication date: October 15, 2015
    Applicant: NEXXTDRIVE LIMITED
    Inventors: David Taitt, Linan Gong