Patents by Inventor PETRUS CORNELIS HENDRIKS

PETRUS CORNELIS HENDRIKS 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).

  • Stiffness control for electroactive actuators
    Patent number: 10680162
    Abstract: An actuator device is provided having a controllable stiffness profile, wherein an actuator member (12) comprises an electroactive polymer material (16) having light absorbing filler elements (20) embedded therein. The filler elements are adapted to absorb and convert incident light (26) to heat energy to therefore heat surrounding sections of the electroactive material. By selectively controlling an intensity level or spectral composition of a light source (24) directed at the actuator member, a specific degree and spread of heating can be achieved across the member and, as a result, a specific desired stiffness or flexibility profile can be realised across the actuator member.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: June 9, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Eduard Gerard Marie Pelssers, Petrus Cornelis Hendriks, Franciscus Johannes Gerardus Hakkens, Achim Hilgers, Daan Anton Van Den Ende, Mark Thomas Johnson
  • STIFFNESS CONTROL FOR ELECTROACTIVE ACTUATORS
    Publication number: 20190348596
    Abstract: An actuator device is provided having a controllable stiffness profile, wherein an actuator member (12) comprises an electroactive polymer material (16) having light absorbing filler elements (20) embedded therein. The filler elements are adapted to absorb and convert incident light (26) to heat energy to therefore heat surrounding sections of the electroactive material. By selectively controlling an intensity level or spectral composition of a light source (24) directed at the actuator member, a specific degree and spread of heating can be achieved across the member and, as a result, a specific desired stiffness or flexibility profile can be realised across the actuator member.
    Type: Application
    Filed: November 10, 2017
    Publication date: November 14, 2019
    Inventors: EDUARD GERARD MARIE PELSSERS, PETRUS CORNELIS HENDRIKS, FRANCISCUS JOHANNES GERARDUS HAKKENS, ACHIM HILGERS, DAAN ANTON VAN DEN ENDE, MARK THOMAS JOHNSON