Patents Assigned to Sierra Extreme
  • Patent number: 10583877
    Abstract: A torque stick apparatus for driving a personal transporter across a transport surface by positioning the torque stick apparatus against a drive surface is described. The torque stick apparatus includes a tubular housing, throttle control, battery pack, motor coupled to a wheel, and motor controller. The motor controller is coupled to the motor, the battery pack, and the throttle control. The motor controller determines whether to select regenerative braking mode based at least in part on the position of the throttle control. The motor controller supplies power from the battery pack to the motor in accordance with the throttle control when regenerative braking mode is not selected. The motor controller provides power from the motor to the battery pack when regenerative braking is selected. The battery pack and the motor controller are contained within the housing.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: March 10, 2020
    Assignee: Sierra Extreme
    Inventor: Dean Edward Campbell
  • Publication number: 20190100260
    Abstract: A torque stick apparatus for driving a personal transporter across a transport surface by positioning the torque stick apparatus against a drive surface is described. The torque stick apparatus includes a tubular housing, throttle control, battery pack, motor coupled to a wheel, and motor controller. The motor controller is coupled to the motor, the battery pack, and the throttle control. The motor controller determines whether to select regenerative braking mode based at least in part on the position of the throttle control. The motor controller supplies power from the battery pack to the motor in accordance with the throttle control when regenerative braking mode is not selected. The motor controller provides power from the motor to the battery pack when regenerative braking is selected. The battery pack and the motor controller are contained within the housing.
    Type: Application
    Filed: September 10, 2018
    Publication date: April 4, 2019
    Applicant: Sierra Extreme
    Inventor: Dean Edward Campbell
  • Patent number: 10071778
    Abstract: A method of operating a personal transporter includes mounting the personal transporter. A torque stick apparatus having a rotating wheel is provided. The wheel of the torque stick apparatus is positioned against a drive surface to drive the personal transporter across a transport surface.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: September 11, 2018
    Assignee: Sierra Extreme
    Inventor: Dean Edward Campbell