Patents by Inventor Mark E. Schuchardt

Mark E. Schuchardt 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).

  • Silencer for gas induction and exhaust systems
    Patent number: 5014816
    Abstract: A silencer having multiple integrated channels arranged in a labyrinth configuration is provided. The channels have one open end and one closed end with the open end in communication with a common zone which is connected to a flow duct. The channels are tuned to provide a selected resonance frequency.
    Type: Grant
    Filed: November 9, 1989
    Date of Patent: May 14, 1991
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Terrence A. Dear, Karl U. Ingard, Mark E. Schuchardt