Filter elements; air filter arrangements; and, methods

Patent metadata

Field	Value
Publication number	US-10279302-B2
Application number	US-201715477235-A
Country	US
Kind code	B2
Filing date	Apr 3, 2017
Priority date	Feb 4, 2005
Publication date	May 7, 2019
Grant date	May 7, 2019

Abstract

Filter elements are described. In an example embodiment, the filter element has a support framework and media defining a closed end and an open end. A non-circular radial seal is depicted, in an example. Variations for particular applications are described.

First claim

What is claimed:

1. An air filter element comprising:
(a) an open filter interior having a first, closed, end and an open end opposite the first, closed, end; the open end having an air flow aperture therethrough;
(b) filter media; and,
(c) a seal arrangement including a non-circular sealing surface positioned at the open end of the filter element;
(i) the sealing surface having a non-circular shape comprising at least three, spaced, radially outwardly directed lobes with non-straight seal surface sections extending therebetween; and,
(ii) the sealing surface being configured and directed to form a radially directed seal.

2. An air filter element according to claim 1 wherein:
(a) the element includes, at the open end, a portion having a sealing surface configured to form a second sealing surface.

3. An air filter element according to 2 wherein:
(a) the portion configured to form a second sealing surface is configured to form an axial seal.

4. An air filter element according to claim 2 wherein:
(a) the media includes one or more layers of fine fiber thereon.

5. An air filter element according to claim 1 wherein:
(a) the filter media is pleated.

6. An air filter element according to claim 1 wherein:
(a) the filter media comprises at least one planar filter panel.

7. An air filter element according to claim 6 wherein:
(a) the filter media comprises at least one rectangular filter panel.

8. An air filter element according to claim 6 wherein:
(a) the filter media comprises multiple rectangular filter panels.

9. An air filter element according to claim 1 wherein:
(a) the sealing surface is configured to form a radially inwardly directed sealing engagement.

10. A filter element comprising:
(a) at least one, generally planar, filter panel;
(b) a support structure supporting the at least one generally planar, filtration panel and defining a filter interior;
(i) the support structure having a first, closed, end and a second, opposite, end with an outlet aperture therein;
(ii) the generally planar filter panel being supported by the support structure: at a location between the first, closed end and the second, opposite, end; and, being oriented to direct air flow through the at least one generally planar filter panel toward a location in the filter interior between the first closed end and the second, opposite, end; and,
(iii) the outlet aperture being a non-circular outlet aperture defined by the support structure; and,

(c) a non-circular, radially inwardly directed, housing seal surface on a seal member mounted at the non-circular outlet.

11. A filter element according to claim 10 wherein:
(a) the non-circular, radially inwardly directed, housing seal surface defines a plurality of spaced radially directed lobes with non-straight seal surface sections therebetween.

12. A filter element according to claim 11 wherein:
(a) the non-circular, radially inwardly directed, housing seal surface defines at least three spaced radially directed lobes with non-straight seal surface sections therebetween.

13. A filter element according to claim 10 wherein:
(a) the non-circular, radially inwardly directed, housing seal surface defines a plurality of spaced radially directed lobes with seal surface sections therebetween.

14. A filter element according to claim 13 wherein:
(a) the at least one filter panel comprises pleated media.

15. A filter element according to claim 10 wherein:
(a) the at least one filter panel comprises at least one, generally planar, filter panel.

16. A filter element comprising:
(a) at least one filter panel;
(b) a support structure supporting the at least one planar filtration panel and defining a filter interior;
(i) the support structure having a first, closed, end and a second, opposite, end with an outlet aperture therein;
(ii) the generally planar filter panel being supported by the support structure: at a location between the first, closed, end and the second, opposite, end; and, being oriented to direct air flow through the at least one, generally planar, filter panel toward a location in the filter interior between the first closed end and the second, opposite, end; and,

(c) a seal member comprising a non-circular, radially directed, housing seal surface.

17. An air filter element according to claim 16 wherein:
(a) the sealing surface is configured to form a radially inwardly directed sealing engagement.

18. An air filter element according to claim 16 wherein:
(a) the filter panel comprises at least one, generally planar, panel.

19. An air filter element according to claim 18 wherein:
(a) the filter panel comprises at least one rectangular panel.

20. An air filter element according to claim 16 wherein:
(a) the filter panel comprises pleated media.

Assignees

• Donaldson Co Inc

Inventors

• Mills Jarren B
• Adamek Daniel
• Dejong Richard

Classifications

• B01D2271/027

  Radial sealings · CPC title

• B01D46/0036 Primary

  by adsorption or absorption · CPC title

• B01D46/0005

  Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence) · CPC title

• B01D2275/10

  Multiple layers · CPC title

• B01D2275/206

  Special forms, e.g. adapted to a certain housing · CPC title