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:
Jun. 17, 2008
Filed:
Aug. 30, 2004
Uwe Keller, Gelnhausen, DE;
Hans-joachim Lowe, Wolfenbuttel, DE;
Joachim Von Der Hagen, Altenhaβlau, DE;
Dietmar Metz, Meckenheim, DE;
Helmut Stonner, Frankenthal, DE;
Uwe Keller, Gelnhausen, DE;
Hans-Joachim Lowe, Wolfenbuttel, DE;
Joachim Von Der Hagen, Altenhaβlau, DE;
Dietmar Metz, Meckenheim, DE;
Helmut Stonner, Frankenthal, DE;
Veritas AG, Gelnhausen, DE;
Borgwarner Inc., Chicago, IL (US);
Abstract
A sound absorber includes an inner component and an outer component surrounding the inner component, the inner component defining an inner wall provided with apertures, and the outer component defining an outer wall extending along the inner wall. For improving the sound-absorbing properties as well as the flexibility of the sound absorber, the outer wall is implemented as a bellows which, together with the inner wall, defines individual cavities, the apertures of the inner wall opening into the cavities.