IP Library › Granted Patent US 12,201,934
Granted Patent B2
US 12,201,934 · App. 18/154,015 · Granted Jan 21, 2025

Filter elements, air cleaner assemblies, and methods of use and assembly

Inventors: Daniel E. Adamek (Bloomington, MN); Benny K. Nelson (Broomington, MN); William Vanaudenhove (Diest, BE); Antoine Decugniere (Woluwe Saint-Pierre, BE)
Assignee: Donaldson Company, Inc.
B01D46/2414B01D45/16B01D50/20B01D2271/027B01D2279/60
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Quick Facts
Patent No.
US 12,201,934
App. No.
18/154,015
Granted
Jan 21, 2025
Kind
B2
Abstract

Air cleaner assemblies, components therefor, and features thereof are described. Also described are methods of assembly and use. In depicted examples, the air cleaner assemblies and components optionally use advantageous housing seal features. Methods of assembly and use are described.

Claims (15)

1. A filter assembly comprising:

a. a housing defining an interior cavity extending between an inlet and an outlet;

b. a safety filter cartridge installed within the housing, the safety filter cartridge being sealed against a portion of the housing such that air passing from the inlet to the outlet must pass through filtration media of the safety filter cartridge, the safety filter cartridge presenting a first sealing surface; and

c. a main filter cartridge installed within the housing, the main filter cartridge being in direct contact with and sealed against the first sealing surface of the safety filter cartridge such that air passing from the inlet to the outlet must additionally pass through filtration media of the main filter cartridge.

2. The filter assembly of claim 1 , wherein the safety filter cartridge first sealing surface includes an annular sealing member circumscribing at least a portion of the safety filter cartridge filtration media, and wherein the main filter cartridge forms a seal against the annular sealing member.

3. The filter cartridge assembly of claim 2 , wherein the safety filter cartridge includes an open end cap and wherein the annular sealing member is partially embedded within the open end cap.

4. The filter assembly of claim 2 , wherein the main filter cartridge includes a seal structure that seals against the annular sealing member.

5. The filter assembly of claim 4 , wherein the main filter cartridge filtration media defines an interior space, and wherein the seal structure is located entirely within the interior space.

6. The filter assembly of claim 4 , wherein the seal structure defines an inwardly directed radial seal.

7. The filter assembly of claim 4 , wherein the seal structure is connected to an open end cap of the main filter cartridge by an annular extension member.

8. The filter assembly of claim 1 , wherein the first sealing surface of the safety filter cartridge defines a radially outward facing sealing surface and the main filter cartridge includes a radially inward facing sealing surface that forms a seal against the first sealing surface of the safety filter cartridge.

9. The filter assembly of claim 8 , wherein the safety filter cartridge includes an annular extension member defining the first sealing surface of the safety filter cartridge.

10. The filter cartridge of claim 8 , wherein the main filter cartridge includes an annular extension member supporting the radially inward facing sealing surface of the main filter cartridge.

11. The filter cartridge of claim 8 , wherein the main filter cartridge includes an open end cap and wherein the radially inward facing sealing surface of the main filter cartridge has a diameter that is less than an internal diameter of an opening in the open end cap.

12. The filter cartridge of claim 8 , wherein the radially inward facing sealing surface of the main filter cartridge is located entirely within an interior volume defined by the filtration media of the main filter cartridge.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 21, 2023
From: ADAMEK, DANIEL E.; NELSON, BENNY K.; VANAUDENHOVE, WILLIAM; DECUGNIÈRE, ANTOINE
To: DONALDSON COMPANY, INC.
Reel/Frame 063050/0182 →
Continuity (4)
Division 16465874
Provisional Application 62463263 · Feb 24, 2017
Provisional Application 62428913 · Dec 1, 2016
Related Publication 20230149844A1 · May 18, 2023
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