Patents by Inventor Nikos G. TSAGARAKIS

Nikos G. TSAGARAKIS 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).

  • ELASTIC ROTARY ACTUATOR, PARTICULARLY FOR ROBOTIC APPLICATIONS, AND METHOD FOR CONTROLLING THE SAME
    Publication number: 20100253273
    Abstract: An actuator and a method for controlling the actuator are described. The actuator comprises: an output member rotatable around an axis of rotation; an input member rotatable around the axis and connected for rotation with the output member via a plurality of cylindrical helical springs; a motor assembly arranged to drive the input member to rotate around the axis of rotation; first and second sensors for detecting the angular position of the input member and the relative angular position between the input member and the output member; and an electronic control unit arranged to determine a desired angular velocity of the input member on the basis of a desired value for the impedance of the actuator and to control the motor assembly on the basis of the error between the desired angular velocity of the input member and the angular velocity of the input member.
    Type: Application
    Filed: April 2, 2010
    Publication date: October 7, 2010
    Inventors: Nikos G. TSAGARAKIS, Darwin G. Caldwell, Matteo Laffranchi, Bram Vanderborght