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:
May. 19, 2009
Filed:
Aug. 31, 2007
Applicants:
Jan Krueger, Neuhausen, DE;
Frank Castor, Esslingen, DE;
Inventors:
Jan Krueger, Neuhausen, DE;
Frank Castor, Esslingen, DE;
Assignee:
J. Eberspaecher GmbH & Co. KG, Esslingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 1/06 (2006.01); G10K 11/16 (2006.01); F01N 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to an active muffler for an exhaust gas system of an internal combustion engine, in particular in a motor vehicle, having at least one antinoise generator for applying antinoise to the exhaust gas, whereby the antinoise generator has a diaphragm drive with which it is coupled via at least one coupling element in a thermally conducting and noise-reducing manner to an outside wall of the muffler, which is in contact with the environment.