Patents by Inventor Jeffrey M. FRIESEN

Jeffrey M. FRIESEN 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).

  • Ball-balancing robot and drive assembly therefor
    Patent number: 10189342
    Abstract: A ball-balancing drive assembly includes a ball having a ball surface and a reference axis extending through a centroid of the ball. Three omniwheel assemblies, each having a motor with a motor axle and an omniwheel configured to rotate around the motor axle are mounted on a chassis configured for supporting the three omniwheel assemblies at radially symmetric spacings with the motor axles oriented at an angle relative to the reference axis and the omniwheels oriented in mutually-orthogonal planes. Each omniwheel frictionally contacts the ball surface to convert rotational motion of the motor axle to torque on the ball.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: January 29, 2019
    Assignee: The Regents of the University of California
    Inventors: Thomas R. Bewley, Jeffrey M. Friesen, Eric Sihite, Daniel Yang
  • BALL-BALANCING ROBOT AND DRIVE ASSEMBLY THEREFOR
    Publication number: 20180022197
    Abstract: A ball-balancing drive assembly includes a ball having a ball surface and a reference axis extending through a centroid of the ball. Three omniwheel assemblies, each having a motor with a motor axle and an omniwheel configured to rotate around the motor axle are mounted on a chassis configured for supporting the three omniwheel assemblies at radially symmetric spacings with the motor axles oriented at an angle relative to the reference axis and the omniwheels oriented in mutually-orthogonal planes. Each omniwheel frictionally contacts the ball surface to convert rotational motion of the motor axle to torque on the ball.
    Type: Application
    Filed: February 9, 2016
    Publication date: January 25, 2018
    Inventors: Thomas R. BEWLEY, Jeffrey M. FRIESEN, Eric SIHITE, Daniel YANG