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US 10,512,877 B2Granted
Method of forming filter arrangements; and, apparatus
AssigneeDonaldson Company, Inc.
InventorBenny K. Nelson
Life of this patent
Estimating the term…
Abstract
A filter cartridge arrangement for use in air cleaners is provided. The filter cartridge arrangement includes a media pack including a plurality of inlet flutes and outlet flutes extending between first and second opposite flow faces and formed from an arrangement of facing sheet secured to corrugated sheet. An example cartridge includes a preform secured to the media pack. In some forms, the preform includes an arrangement extending over one of the flow faces.
Claims38
An air filter cartridge arrangement comprising:
- (a) a fluted media pack arranged in a coiled configuration and having opposite flow faces and a plurality of first flutes and a plurality of second flutes extending between the opposite flow faces;
- wherein
- (i) the fluted media pack is formed from an arrangement of a facing media sheet secured to a fluted media sheet;
- (ii) the fluted media pack defines an outer periphery;
- and
- (iii) the plurality of first flutes are closed at a first location and the plurality of second flutes are closed at a second location so that air flowing into one of the opposite flow faces and into one of the plurality of first flutes or the plurality of second flutes flows into the other of the plurality of first flutes or the plurality of second flutes and out through the other of the opposite flow faces;
- (b) a preform secured to the fluted media pack arranged in a coiled configuration and comprising a portion which surrounds the fluted media pack arranged in a coiled configuration;
- (c) a molded-in-place housing seal arrangement including an outer radially directed seal surface located around the outer periphery of the fluted media pack;
- and
- (d) a cured resin portion extending into at least a portion of one of the opposite flow faces, wherein the cured resin is a result of applying an uncured resin across at least a portion of one of the opposite flow faces of the fluted media pack arranged in a coiled configuration.
7 more elements
An air filter cartridge arrangement comprising:
- (a) a fluted media pack arranged in a coiled configuration and having opposite flow faces and a plurality of first flutes and a plurality of second flutes extending between the opposite flow faces;
- wherein
- (i) the fluted media pack is formed from an arrangement of a facing media sheet secured to a fluted media sheet;
- (ii) the fluted media pack defines an outer periphery having a racetrack shape comprising curved ends separated by sides;
- and
- (iii) the plurality of first flutes are closed at a first location and the plurality of second flutes are closed at a second location so that air flowing into one of the opposite flow faces and into one of the plurality of first flutes or the plurality of second flutes flows into the other of the plurality of first flutes or the plurality of second flutes and out through the other of the opposite flow faces;
- (b) a preform secured to the fluted media pack arranged in a coiled configuration and comprising:
- (i) a portion which surrounds the fluted media pack arranged in a coiled configuration;
- (ii) an outwardly projecting radial projection extending from the preform portion, the outwardly projecting radial projection being discontinuous around the fluted media pack arranged in a coiled configuration and being provided in an arcuate shape around the curved ends of the fluted media pack arranged in a coiled configuration;
- and
- (iii) wherein one of the opposite flow faces comprises an inlet flow face, and the preform is arranged adjacent to the inlet flow face;
- (c) a molded-in-place housing seal arrangement including an outer radially directed seal surface located around the outer periphery of the fluted media pack;
- and
- (d) a cured resin portion extending into at least a portion of one of the opposite flow faces, wherein the cured resin is a result of applying an uncured resin across at least a portion of one of the opposite flow faces of the fluted media pack arranged in a coiled configuration.
11 more elements
An air cleaner assembly comprising:
- (a) an air cleaner housing comprising a housing portion and an access cover;
- (b) an air filter cartridge comprising:
- (i) a fluted media pack arranged in a coiled configuration and having opposite flow faces and a plurality of first flutes and a plurality of second flutes extending between the opposite flow faces;
- wherein
- (A) the fluted media pack is formed from an arrangement of a facing media sheet secured to a fluted media sheet;
- (B) the fluted media pack defines an outer periphery having a racetrack shape comprising curved ends separated by sides;
- and
- (C) the plurality of first flutes are closed at a first location and the plurality of second flutes are closed at a second location so that air flowing into one of the opposite flow faces and into one of the plurality of first flutes or the plurality of second flutes flows into the other of the plurality of first flutes or the plurality of second flutes and out through the other of the opposite flow faces;
- (ii) a preform secured to the fluted media pack arranged in a coiled configuration and comprising:
- (A) a portion which surrounds the fluted media pack arranged in a coiled configuration;
- (B) an outwardly projecting radial projection extending from the preform portion, the outwardly projecting radial projection being discontinuous around the fluted media pack arranged in a coiled configuration and being provided in an arcuate shape around the curved ends of the fluted media pack arranged in a coiled configuration;
- and
- (C) wherein one of the opposite flow faces comprises an inlet flow face, and the preform is arranged adjacent to the inlet flow face;
- (iii) a molded-in-place housing seal arrangement including an outer radially directed seal surface located around the outer periphery of the fluted media pack;
- and
- (iv) a cured resin portion extending into at least a portion of one of the opposite flow faces, wherein the cured resin is a result of applying an uncured resin across at least a portion of one of the opposite flow faces of the fluted media pack arranged in a coiled configuration
- (c) the air filter cartridge being positioned in the housing with the outer radially directed seal surface engaging the housing portion to provide a radially directed seal.
14 more elements
Dependencies are inferred from the claim text.