Patents by Inventor Douglas Frank Winker

Douglas Frank Winker 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).

  • Methods for producing acoustic sources
    Patent number: 7610810
    Abstract: Embodiments include an acoustic source for use in a hemi-anechoic chamber comprising a source assembly and a waveguide assembly for producing sound outside of a measurement hemisphere and channeling the sound into the measurement hemisphere. A waveguide end from which sound emanates is positioned close to the reflecting plane of the chamber and can approximate a point source.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: November 3, 2009
    Assignee: Ets-Lindgren, L.P.
    Inventor: Douglas Frank Winker
  • Methods for producing acoustic sources
    Publication number: 20090178878
    Abstract: Embodiments include an acoustic source for use in a hemi-anechoic chamber comprising a source assembly and a waveguide assembly for producing sound outside of a measurement hemisphere and channeling the sound into the measurement hemisphere. A waveguide end from which sound emanates is positioned close to the reflecting plane of the chamber and can approximate a point source.
    Type: Application
    Filed: January 10, 2008
    Publication date: July 16, 2009
    Inventor: Douglas Frank Winker