Patents by Inventor Loren Avan DeVries

Loren Avan DeVries 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).

  • Vehicle cab noise suppressing system
    Patent number: 7503424
    Abstract: A vehicle cab noise suppressing system includes a cab interior panel having an opening exposed to acoustic noise in the cab, an acoustic resonator chamber, and a conduit communicating the resonator chamber to the opening. The resonator chamber is formed by a plurality of walls which are spaced apart from the interior panel and which are formed by a second panel. A third panel cooperates with the walls to enclose the resonator chamber. The chamber volume and the diameter and length of the conduit are chosen so as to acoustically tune the chamber to a noise frequency in the cab and thereby reduce noise in the cab.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: March 17, 2009
    Assignee: Deere & Company
    Inventors: Adam Joe Shuttleworth, Jeffrey John Girard, Paul Thomas Bruss, James Reginald Byrd, Jason Michael Edgington, Loren Avan DeVries