Patents by Inventor Sebastian GRATZ-KELLY

Sebastian GRATZ-KELLY 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).

  • AUDIO-TACTILE TRANSDUCER DEVICE BASED ON DIELECTRIC ELECTRO-ACTIVE ELASTOMERS
    Publication number: 20230262396
    Abstract: The present invention relates to a transducer device comprising: At least one dielectric electro-active membrane, an actuation element coupled with the at least one electro-active membrane so that the electro-active membrane is biased in at least one of its plane directions; wherein the actuation element is provided with a mass so that when electrically excited a first resonance frequency is developed in a fundamental mode of a longitudinal oscillation of the actuation element and a second resonance frequency is developed in a fundamental mode of a transverse oscillation of the membrane, wherein the second resonance frequency is at least six times higher than the first resonance frequency.
    Type: Application
    Filed: February 10, 2023
    Publication date: August 17, 2023
    Inventors: Giacomo MORETTI, Sebastian GRATZ-KELLY, Marco FONTANA, Paul MOTZKI, Gianluca RIZZELLO, Stefan SEELECKE