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US 7,625,419 B2Granted
Air filter arrangement; assembly; and, methods
AssigneeDonaldson Company, Inc.
InventorsBenny Kevin Nelson, Gregory L. Reichter, Bruce Allen Boehrs, Paul Anthony Wendt
Life of this patent
Estimating the term…
Abstract
An air filter arrangement, an air cleaner assembly including the air filter arrangement and methods of assembly and use are described. An air filter arrangement comprising a serviceable filter cartridge is described. The typical cartridge includes a recessed first flow face and an opposite outwardly projecting second flow face, with a central apex. Features of the cartridge, and an air cleaner for installation into the cartridge, are described.
Claims39
An air filter cartridge comprising:
- (a) a media pack arrangement comprising a plurality of flutes extending between an inlet face and an outlet face;
- (i) the flutes including:
- a first set of inlet flutes open adjacent the inlet face and closed adjacent the outlet face;
- and, a second set of outlet flutes open adjacent the outlet face and closed adjacent the inlet face;
- (ii) the media pack arrangement having first and second, opposite, side ends;
- (b) a first, molded-in-place, side piece secured to the first side end of the media pack arrangement;
- (i) the first, molded-in-place, side piece having a downstream edge with a central apex and end edges on opposite sides of the apex;
- (c) a second, molded-in-place, side piece secured to the second side end of the media pack arrangement;
- (i) the second, molded-in-place, side piece having a downstream edge with a central apex and end edges on opposite sides of the apex;
- and,
- (d) a housing seal arrangement secured in position in extension around the media pack arrangement and the first and second molded-in-place side pieces.
8 more elements
An air filter cartridge comprising:
- (a) a media pack arrangement comprising two slanted stacks of single facer strips positioned on opposite sides of a center piece and defining:
- (i) an inlet face with a recessed central region;
- and,
- (ii) an outlet face with a central projection;
- (iii) the center piece including a handle arrangement projecting outwardly from the inlet face;
- and,
- (b) a housing seal arrangement positioned in extension around the media pack arrangement adjacent the upstream face.
4 more elements
An air filter cartridge comprising:
- (a) a media pack arrangement comprising strips of single facer media and first and second, opposite, flow faces;
- (i) the first flow face having a central recess therein formed by strips of single facer media forming a face having an inwardly directed v-shape;
- and,
- (ii) the second flow face having a central projection therein formed by strips of single facer media forming a face having an outwardly directed v-shape.
1 more element
An air cleaner assembly comprising:
- (a) a media pack arrangement including stacked strips of single facer media and having first and second, opposite, flow faces;
- (i) the first flow face having a v-shaped recess therein;
- and,
- (ii) the second flow face having a v-shaped projection thereon;
- (b) a preform arrangement adhesively secured to the media pack arrangement;
- (i) the preform including a flow outlet.
3 more elements
An air filter cartridge comprising:
- (a) a media pack arrangement comprising a plurality of flutes extending between an inlet face and an outlet face;
- (i) the flutes including:
- a first set of inlet flutes open adjacent the inlet face and closed adjacent the outlet face;
- and, a second set of outlet flutes open adjacent the outlet face and closed adjacent the inlet face;
- (ii) the media pack arrangement having first and second, opposite, side ends;
- (b) a first, molded-in-place, side piece secured to the first side end of the media pack arrangement;
- (i) the first, molded-in-place, side piece having an edge with a central apex and end edges on opposite sides of the apex;
- (c) a second, molded-in-place, side piece secured to the second side end of the media pack arrangement;
- (i) the second, molded-in-place, side piece having an edge with a central apex and end edges on opposite sides of the apex;
- and,
- (d) a housing seal arrangement secured in position in extension around the media pack arrangement and the first and second molded-in-place side pieces.
8 more elements
An air filter cartridge comprising:
- (a) a media pack arrangement comprising two slanted stacks of single facer strips positioned on opposite sides of a center piece and defining:
- (i) a first flow face with a recessed central region;
- and,
- (ii) a second flow face with a central projection;
- (iii) the center piece including a handle arrangement projecting outwardly from the first face;
- and,
- (b) a housing seal arrangement positioned in extension around the media pack arrangement adjacent the first face.
4 more elements
Dependencies are inferred from the claim text.