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.

Date of Patent:
Sep. 22, 2020

Filed:

Feb. 22, 2018
Applicant:

Carl Freudenberg KG, Weinheim, DE;

Inventors:

Tobias Scholz, Viernheim, DE;

Oliver Kurtz, Rauenberg, DE;

Ulrich Stahl, Laudenbach, DE;

Anette Arnold, Seeheim-Jugenheim, DE;

Volker Braeunling, Heppenheim, DE;

Judith Hemmerling, Bretten, DE;

Assignee:

CARL FREUDENBERG KG, Weinheim, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 46/00 (2006.01); B01D 46/52 (2006.01); B01D 53/04 (2006.01); B60H 3/06 (2006.01);
U.S. Cl.
CPC ...
B01D 46/0023 (2013.01); B01D 46/0008 (2013.01); B01D 46/521 (2013.01); B01D 53/0407 (2013.01); B60H 3/0608 (2013.01); B60H 3/0658 (2013.01); B01D 2253/102 (2013.01); B01D 2253/108 (2013.01); B01D 2253/3425 (2013.01); B01D 2257/302 (2013.01); B01D 2257/40 (2013.01); B01D 2257/406 (2013.01); B01D 2257/708 (2013.01); B01D 2259/4566 (2013.01); B01D 2279/40 (2013.01); B60H 2003/0691 (2013.01);
Abstract

A supply air arrangement for a mobile device includes: at least one inlet; at least one air duct; at least one outlet; and a filtering arrangement comprising at least two filtering elements. A first filtering element and a second filtering element that is formed separately from the first filtering element are arranged in the air duct.


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