Deere & Company

Jeffrey John Girard

Paul Thomas Bruss

Adam Joe Shuttleworth

Jason Michael Edgington

James Reginald Byrd

Loren Avan DeVries

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.

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Cedar Falls, IA, United States of America

Jeffrey John Girard