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US 7,351,270 B2Granted
Air cleaner arrangements; serviceable filter elements; and, methods
AssigneeDonaldson Company, Inc.
InventorsRandall Allen Engelland, Thomas Richard Olson, Gary Ray Gillingham, Jim C. Rothman, Richard Lawrence Suydam
Life of this patent
Estimating the term…
Abstract
An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.
Claims20
An air cleaner arrangement including:
- (a) a housing having an inlet end and an opposite outlet end;
- (i) the housing having a sidewall in extension between the inlet end and the outlet end and defining a top, a bottom and opposite sides;
- (ii) the housing sidewall including an access cover removable from a remainder of the housing;
- and
- (b) a filter cartridge comprising:
- (i) a z-filter media construction comprising a fluted sheet secured to a facing sheet, and having opposite inlet and outlet flow faces;
- (ii) a sheath positioned surrounding the z-filter media construction;
- (iii) a seal arrangement comprising a rubber like material positioned to axially seal the filter cartridge inside the housing;
- (iv) a projection arrangement including projections extending outwardly from opposite sides of the sheath;
- (v) the filter cartridge being sized to be positioned in, and to be removed from, an interior of the housing by passage through the housing sidewall when the access cover is removed;
- and
- (c) the filter cartridge being positioned inside of the housing with:
- (i) the seal arrangement axially sealed to the housing;
- and
- (ii) a portion of the air cleaner arrangement in engagement with the projections on the sheath and thereby axially driving the filter cartridge and axially sealing the seal arrangement against the housing.
12 more elements
An air cleaner arrangement including:
- (a) a housing having an inlet end and an opposite outlet end;
- (i) the housing having a sidewall in extension between the inlet end and the outlet end and defining a top, a bottom and opposite sides;
- (ii) the housing top including an access cover removable from a remainder of the housing;
- and
- (b) a filter cartridge comprising:
- (i) a z-filter media construction comprising a fluted sheet secured to a facing sheet, coiled and having opposite inlet and outlet flow faces;
- (ii) an impermeable, one-piece, plastic sheath positioned surrounding the z-filter media construction;
- (iii) a seal arrangement comprising a rubber like material positioned to axially seal the filter cartridge inside the housing;
- (iv) a projection arrangement including projections extending outwardly from opposite sides of the sheath;
- the projection arrangement being integral with the one-piece plastic sheath;
- (v) the filter cartridge being sized to be positioned in, and to be removed from, an interior of the housing by passage through the housing sidewall when the access cover is removed;
- (c) the filter cartridge being positioned inside of the housing with:
- (i) the seal arrangement axially sealed to the housing with the rubber-like material compressed in thickness;
- and
- (ii) a portion of the air cleaner arrangement in engagement with the projections on the sheath and thereby axially driving the filter cartridge and axially compressing the seal arrangement against the housing.
12 more elements
Dependencies are inferred from the claim text.