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:
Jan. 29, 2002
Filed:
Jul. 18, 2000
Matthias Alex, Heilbronn, DE;
Rolf Fuesser, Bad Herrenalb, DE;
Filterwerk Mann & Hummel GmbH, Ludwigsburg, DE;
Abstract
The invention relates to a silencer. The silencer includes a sound conducting channel having two ends. An injection molded part is arranged between the two ends of the sound conducting channel and includes a plurality of pipe elements. A shunt resonator is arranged in fluid communication with the sound conducting channel by way of openings formed in the plurality of pipe elements. The shunt resonator defines a volume formed by two housing parts which are joined together. By varying the number, position, length and diameter of the pipe elements in the silencer, the silencer is capable of achieving silencing gains in different frequency ranges.