Patents by Inventor Douglas WINKER

Douglas 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).

  • Acoustic chamber with low frequency transparency
    Patent number: 9799317
    Abstract: An acoustic chamber with low frequency outer wall transmissivity is provided. According to one aspect, an acoustic chamber has an inner wall encompassing an interior of the acoustic chamber and configured to allow acoustic energy to penetrate the inner wall. The acoustic chamber also has an outer wall configured to allow low frequency acoustic energy that penetrates the inner wall to penetrate the outer wall and leave the acoustic chamber.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: October 24, 2017
    Assignee: ETS-Lindgren Inc.
    Inventor: Douglas Winker
  • ACOUSTIC CHAMBER WITH LOW FREQUENCY TRANSPARENCY
    Publication number: 20170200439
    Abstract: An acoustic chamber with low frequency outer wall transmissivity is provided. According to one aspect, an acoustic chamber has an inner wall encompassing an interior of the acoustic chamber and configured to allow acoustic energy to penetrate the inner wall. The acoustic chamber also has an outer wall configured to allow low frequency acoustic energy that penetrates the inner wall to penetrate the outer wall and leave the acoustic chamber.
    Type: Application
    Filed: April 7, 2016
    Publication date: July 13, 2017
    Inventor: Douglas WINKER