Patents by Inventor Guenter M. Schindler

Guenter M. Schindler 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).

  • Multi-layered acoustic liner
    Patent number: 3948346
    Abstract: This invention concerns a multi-layered acoustic liner which breaks up high amplitude sound and shock waves into several waves of the same type but smaller amplitudes, converting some acoustic energy into heat and shifting part of the acoustic energy to a higher frequency level to achieve better absorption by the atmosphere. The sandwich-type perforated plate acoustic liner comprises several layers of honeycomb backing material which are separated by thin perforated sheets.
    Type: Grant
    Filed: April 2, 1974
    Date of Patent: April 6, 1976
    Assignee: McDonnell Douglas Corporation
    Inventor: Guenter M. Schindler