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US RE49,213 E1Granted
Air filter arrangement; air cleaner assembly; and, methods
AssigneeDonaldson Company, Inc.
InventorsBenny K. Nelson, David W. Nelson
Life of this patent
Estimating the term…
Abstract
A media pack for including in a filter cartridge of an air filter arrangement, is provided. A variety of configurations for the media pack are described and shown, an example shown being trapezoidal. Filter cartridges including such media packs, air cleaner assemblies and equipment systems are described. Also methods of use assembly are described.
Claims54
An air cleaner assembly comprising:
- (a) a housing base;
- (i) the housing base including a perimeter wall and an end;
- the housing base defining an access opening opposite the housing end;
- (ii) the housing base including an aperture arrangement through the perimeter wall;
- and,
- (iii) the housing base having an air flow outlet therein;
- (b) an access cover removably mounted on the housing base and over the access opening;
- (i) the access cover including:
- an outer cover;
- a pressure flange;
- and, a side arrangement extending between the outer cover and the pressure flange;
- the access cover being positioned on the housing base with the pressure flange projecting into the housing base to a location between the aperture arrangement, through the perimeter wall, and the air flow outlet;
- and,
- (c) an air filter cartridge operably positioned in the housing;
- the air filter cartridge comprising;
- (i) a media pack having first and second, opposite, inlet and outlet flow faces;
- (A) the media pack comprising media including fluted media secured to facing media to define inlet and outlet flutes extending in a direction between the first and second, opposite, inlet and outlet flow faces;
- (B) the media pack being closed to flow of unfiltered air completely therethrough from the first flow through second flow face;
- and,
- (ii) a housing seal arrangement positioned around the media pack;
- (A) the housing seal arrangement including a portion molded-in-place in contact with a portion of the media;
- (B) the housing seal arrangement including a pinch flange and defining a receiving gap between a portion of the pinch flange and the media pack;
- and,
- (C) the pinch flange defining a non-rectangular perimeter shape;
- (c) the housing base including a flange projecting into the receiving gap between the pinch flange of the housing seal arrangement, and the media pack;
- and,
- (d) the housing base including a housing base pressure flange portion against which the pinch flange of the housing seal arrangement is pressed by the pressure flange on the access cover;
- (i) the housing base pressure flange portion being positioned such that the aperture arrangement through in perimeter wall of the housing base is located between the access opening and the housing base pressure flange portion.
25 more elements
An air filter cartridge comprising:
- (a) a media pack having first and second, opposite, flow faces;
- (i) the media pack comprising a stack of alternating corrugated filter media and facing filter media, wherein the corrugated filter media includes a plurality of ridges extending in an axial direction of extension between the first and second, opposite, flow faces;
- (ii) the first flow face comprising a planar flow face with a non-rectangular perimeter shape;
- (iii) the media pack having a first pair of first and second opposite sides, wherein the first side extends along a direction of the plurality of ridges between the first and second opposite flow faces and having a plane non-parallel to the second opposite side of the media pack;
- and,
- (iv) the media pack having a second pair of third and fourth opposite sides, wherein the second pair of third and fourth opposite sides are parallel;
- and,
- (b) sealant applied to, and covering, the first side of the first pair of first and second opposite sides.
5 more elements
An air filter cartridge according to claim 38 wherein:
- (a) at least a portion of the flutes comprise tapered flutes.
An air cleaner assembly comprising:
- (a) a housing having an access cover removably mounted thereon;
- and,
- (b) an air filter cartridge operably positioned within the air cleaner housing;
- the air filter cartridge comprising;
- (i) a media pack having first and second, opposite, flow faces;
- (A) the media pack comprising a stack of alternating corrugated filter media and facing filter media, wherein the corrugated filter media includes a plurality of ridges extending in an axial direction of extension between the first and second, opposite, flow faces;
- (B) the first flow face comprising a planar flow face with a non-rectangular perimeter shape;
- (C) the media pack having a first pair of first and second opposite sides, wherein the first side extends along a direction of the plurality of ridges between the first and second opposite flow faces and having a plane non-parallel to the second opposite side of the media pack;
- and,
- (D) the media pack having a second pair of third and fourth opposite sides, wherein the second pair of third and fourth opposite sides are parallel;
- and,
- (ii) sealant applied to, and covering, the first side of the first pair of first and second opposite sides.
9 more elements
An air filter cartridge comprising:
- (a) a media pack having first and second, opposite, flow faces;
- (i) the media pack comprises corrugated filter media forming rows of a plurality of ridges extending in an axial direction between the first and second, opposite, flow faces;
- (ii) the media pack comprising facing filter media located between the corrugated filter media;
- (iii) the media pack having a first pair of first and second opposite sides, and a second pair of third and fourth opposite sides, wherein the first side extends in the axial direction between the first and second opposite flow faces and having a plane non-parallel to the second opposite side of the media pack, and the second pair of third and fourth opposite sides are parallel;
- and,
- (b) sealant applied to, and covering, the first side of the first pair of first and second opposite sides.
3 more elements
Dependencies are inferred from the claim text.