The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2009
Filed:
Dec. 22, 2005
Adam Joe Shuttleworth, Denver, IA (US);
Jeffrey John Girard, Cedar Falls, IA (US);
Paul Thomas Bruss, Cedar Falls, IA (US);
James Reginald Byrd, Cedar Falls, IA (US);
Jason Michael Edgington, Cedar Falls, IA (US);
Loren Avan Devries, Bettendorf, IA (US);
Adam Joe Shuttleworth, Denver, IA (US);
Jeffrey John Girard, Cedar Falls, IA (US);
Paul Thomas Bruss, Cedar Falls, IA (US);
James Reginald Byrd, Cedar Falls, IA (US);
Jason Michael Edgington, Cedar Falls, IA (US);
Loren Avan DeVries, Bettendorf, IA (US);
Deere & Company, Moline, IL (US);
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.