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:
Oct. 06, 2026
Filed:
Apr. 29, 2024
Mann+hummel Gmbh, Ludwigsburg, DE;
Daniel Schmid, Sachsenheim, DE;
Kevin Kohn, Grossbottwar, DE;
MANN+HUMMEL GmbH, Ludwigsburg, DE;
Abstract
A filter system has a filter housing enclosing an interior space. An exchangeable filter element and a resonator structure are arranged in the interior space. The resonator structure has resonator housing elements forming a closed resonator housing enclosing a cavity in an intended state. A partition divides the cavity into a first and a second chamber. The partition has a passage through which the first and second chambers are acoustically coupled. The filter housing has a housing part providing one of the resonator housing elements. The filter element is provided with another one of the resonator housing elements. The filter element has a filter bellows and a cutout penetrating the filter bellows from an inflow side to an outflow side of the filter bellows. The cutout is a resonator housing receptacle. At least one of the resonator housing elements is arranged in the cutout.