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. 23, 2015
Filed:
Jul. 16, 2014
Eberspächer Exhaust Technology Gmbh & Co. KG, Neunkirchen, DE;
Maximilian Peitz, Kirchheim unter Teck, DE;
Steffen David, Schorndorf, DE;
Eberspächer Exhaust Technology GmbH & Co. KG, Neunkirchen, DE;
Abstract
A sound generatorfor an anti-noise system for influencing sound waves propagating in exhaust systems or intake systems of vehicles driven by an internal combustion engine includes a loudspeaker basket, a membranesupported by the loudspeaker basket, a permanent magnetsupported by the loudspeaker basket, a voice coilsupported by a voice coil carrierand a membrane stop. The voice coilis located within a constant magnetic field generated by the permanent magnet. The voice coil carrieris supported by the membrane. The membrane stopis located on the loudspeaker basketadjacent to the membrane. The membrane stopincludes a projectionextending towards the membrane. An anti-noise system using the sound generator and a vehicle using the anti-noise system are also provided.