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:
Aug. 24, 2004
Filed:
Dec. 24, 2002
Applicant:
Inventors:
Bernd Fuhrmann, Edenkoben, DE;
Friedrich Bielert, Göttingen, DE;
Assignee:
Heinrich Gillet GmbH, Edenkoben, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 7/10 ;
U.S. Cl.
CPC ...
F01N 7/10 ;
Abstract
The device for producing an overtone-rich, sporty exhaust sound of the exhaust system of a four-cylinder engine includes exhaust pipes with four manifold pipes, at least one front pipe and a tail pipe. The length and/or cross-section of at least one exhaust pipe differ from the length and/or cross-section of the other exhaust pipes. At least some of the exhaust pipes lead into a first, second and/or third collecting point.