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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.:

US 12168194 B1

PDFFull Text
Date of Patent:
Dec. 17, 2024

Filed:

Jul. 22, 2021

Filter cartridges; air cleaner assemblies; housings; features; components; and, methods

Applicant:

Donaldson Company, Inc., Minneapolis, MN (US);

Inventors:

David J. Burton, Minneapolis, MN (US);

Hubert Julius Rahn, Minneapolis, MN (US);

Assignee:

Donaldson Company, Inc., Bloomington, MN (US);

Attorney:

Merchant & Gould P.C.

Primary Examiner:

Dung H Bui

Int. Cl.
CPC ...
B01D 45/12 (2006.01); B01D 45/14 (2006.01); B01D 46/00 (2022.01); B01D 46/10 (2006.01); B01D 46/24 (2006.01); B01D 46/26 (2006.01); B01D 46/52 (2006.01); B01D 46/62 (2022.01); B01D 50/20 (2022.01); F02M 35/02 (2006.01); F02M 35/024 (2006.01);
U.S. Cl.
CPC ...
B01D 46/526 (2013.01); B01D 45/12 (2013.01); B01D 45/14 (2013.01); B01D 46/0005 (2013.01); B01D 46/10 (2013.01); B01D 46/2411 (2013.01); B01D 46/26 (2013.01); B01D 46/525 (2013.01); B01D 46/62 (2022.01); B01D 50/20 (2022.01); F02M 35/0205 (2013.01); F02M 35/0216 (2013.01); F02M 35/02416 (2013.01); B01D 46/527 (2013.01); B01D 2265/02 (2013.01); B01D 2267/40 (2013.01); B01D 2271/02 (2013.01); B01D 2271/022 (2013.01); B01D 2279/60 (2013.01);
Abstract

Air cleaner assemblies, components, features and methods of assembly and use are described. Example air cleaner assemblies are depicted and described in which a main filter cartridge sealing surface is recessed from an open end of a housing body. An access cover of the housing is configured with a portion extending inwardly to engage a main filter cartridge portion and bias it against the main filter cartridge sealing surface. In selected assemblies, the portion of the access cover extending inwardly toward the main filter cartridge, is a precleaner having flow separator tubes therein.

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