Air cleaner; replaceable filter cartridges; and, methods

Patent metadata

Field	Value
Publication number	US-10717034-B2
Application number	US-201816041984-A
Country	US
Kind code	B2
Filing date	Jul 23, 2018
Priority date	Oct 28, 2002
Publication date	Jul 21, 2020
Grant date	Jul 21, 2020

Abstract

The disclosure concerns air cleaners. Preferred air cleaners are shown which include a housing and a removable and replacement primary filter cartridge. Optional and advantageous features are shown. The preferred primary filter cartridge is conical in shape. A preferred optional safety or secondary filter cartridge is shown. Preferred methods of assembly and use are provided.

First claim

What is claimed is:

1. An air filter cartridge comprising:
(a) media extending between first and second cartridge ends and around an open filter interior;
(i) the cartridge first end being an open end with an air flow aperture therethrough; and,
(ii) the cartridge second end being closed to air flow passage therethrough;

(b) a support having a portion surrounded by the media;
(c) a housing seal member positioned on the air filter cartridge adjacent the cartridge first end; and,
(d) two posts positioned on the cartridge second end;
(i) each post projecting in a direction away from the cartridge first end.

2. An air filter cartridge according to claim 1 wherein:
(a) the first and second posts are circular in cross-section.

3. An air filter cartridge according to claim 1 wherein:
(a) a portion of the support surrounded by the media having a porous structure at least 50% open.

4. An air filter cartridge according to claim 3 wherein:
(a) the portion of the support surrounded by the media is a porous structure comprising extensions supported by parallel spaced hoops.

5. An air filter cartridge according to claim 1 wherein:
(a) the media is not pleated.

6. An air filter cartridge according to claim 1 wherein:
(a) the housing seal member is configured to form a radially directed seal.

7. An air filter cartridge according to claim 6 wherein:
(a) the housing seal member is an o-ring.

8. An air filter cartridge according to claim 1 wherein:
(a) the media defines a circular outer perimeter in a cross-section perpendicular to a direction between the first and second cartridge ends.

9. An air filter cartridge according to claim 1 wherein:
(a) each of the two posts is positioned in axial overlap with the open filter interior.

10. An air filter cartridge according to claim 1 including:
(a) the support includes members positioned on the cartridge; the members defining slots oriented to receive projections on a housing therein, during cartridge installation.

11. An air cleaner assembly comprising:
(a) a housing defining a housing interior and having a sidewall with first and second opposite ends;
(i) the first end having an axial outlet thereon; and,
(ii) the housing sidewall being closed by a removable end cover;

(b) an air filter cartridge operably and removably positioned with within the housing interior; the air filter cartridge comprising:
(i) media extending between first and second cartridge ends and around an open filter interior;
(A) the cartridge first end being an open end with an air flow aperture therethrough; and,
(B) the cartridge second end being closed to air flow passage therethrough;

(ii) a support having a portion surrounded by the media;
(iii) a housing seal member positioned on the air filter cartridge adjacent the cartridge first end; and,
(iv) two posts positioned on the cartridge second end;
(A) each post projecting in a direction away from the cartridge first end; and,

(v) the air cleaner including a precleaner arrangement having a dust drop tube.

12. An air cleaner assembly according to claim 11 wherein:
(a) the support includes slots positioned on the cartridge; the slots being oriented to receive projections on a housing passing therein, during cartridge installation; and,
(b) the housing including projection portions that project into the slots, as the cartridge is installed.

Assignees

• Donaldson Co Inc

Inventors

• Scott James R
• Finnerty Carolyn
• Gieseke Steven
• Iddings Douglas
• Juliar William
• Lavallee Gregory

Classifications

• B01D46/88

  Replacing filter elements · CPC title

• B01D46/64

  arranged concentrically or coaxially · CPC title

• F01M13/0033

  Breather inlet-air filters · CPC title

• B01D46/0004

  Details of removable closures, lids, caps or filter heads · CPC title

• F02M35/02483

  Cylindrical, conical, oval, spherical or the like filter elements; wounded filter elements · CPC title