Patents by Inventor Lars Strömbäck

Lars Strömbäck 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).

  • Acoustic element
    Patent number: 9654862
    Abstract: A combined fan and loudspeaker element, comprising a motor driven rotor provided with wings or blades, wherein the wings or blades are adjustable in pitch resulting together with a rotation of the rotor in an air transport flow, said wings or blades having superimposed thereon a sound-pitch modulation corresponding to a desired sound-pitch with the rotation of the rotor.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: May 16, 2017
    Inventor: Lars Strömbäck
  • ACOUSTIC ELEMENT
    Publication number: 20140003624
    Abstract: A combined fan and loudspeaker element, comprising a motor driven rotor provided with wings or blades, wherein the wings or blades are adjustable in pitch resulting together with a rotation of the rotor in an air transport flow, said wings or blades having superimposed thereon a sound-pitch modulation corresponding to a desired sound-pitch with the rotation of the rotor.
    Type: Application
    Filed: August 29, 2013
    Publication date: January 2, 2014
    Inventor: Lars Strömbäck