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:
Aug. 29, 2023
Filed:
Sep. 23, 2019
Applicant:
Mahle International Gmbh, Stuttgart, DE;
Inventors:
Ralf Berndt, Ditzingen-Schockingen, DE;
Norman Schaake, Markgroeningen, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60H 1/00 (2006.01);
U.S. Cl.
CPC ...
B60H 1/00564 (2013.01); B60H 2001/006 (2013.01);
Abstract
A ventilating tube may include a body through which air is flowable in an air flow direction and a sound attenuating mechanism for attenuating airborne noise. The sound attenuating mechanism may be a wavelength resonator, which may include at least one resonance chamber. On one side, the at least one resonance chamber may have an opening which opens the at least one resonance chamber into the body transversely to the air flow direction.