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US 6,783,565 B2Granted
Filter arrangement; sealing system; and methods
AssigneeDonaldson Company, Inc.
InventorsSteven Scott Gieseke, Carolyn J. Finnerty
Life of this patent
Estimating the term…
Abstract
A filter pack includes a filter construction and a sealing system for sealing the construction within a duct or housing. The filter construction has first and second opposite flow faces and is configured for a straight-through flow. The sealing system includes a frame construction and a compressible seal member. The compressible seal member is molded around a portion of the frame construction. The compressible seal member is sufficiently compressible to form a radial seal between and against the frame construction and a surface of a housing when the filter pack is inserted within the housing.
Claims32
A filter element arrangement comprising:
- (a) a media pack having first and second opposite flow faces and a plurality of flutes;
- (i) each of said flutes having a first end portion adjacent to said first flow face and a second end portion adjacent to said second flow face;
- (ii) selected ones of said flutes being open at said first end portion and closed at said second end portion;
- and selected ones of said flutes being closed at said first end portion and open at said second end portion;
- (iii) said media pack having a longitudinal axis passing through the first flow face and the second flow face;
- (b) a sealing system including a frame construction and a seal member;
- (i) said frame construction including an extension projecting axially from one of said first and second flow faces and in a same direction as the longitudinal axis;
- (ii) said seal member being supported by said extension of said frame arrangement;
- and
- (iii) said frame construction having a portion extending across one of said first flow face and second flow face.
7 more elements
An air cleaner comprising:
- (a) a housing arrangement including at least a cover and a body member;
- (i) said cover defining an air flow inlet;
- (b) a removeable and replaceable filter element oriented in said body member;
- said filter element including:
- (i) a coiled media construction having:
- first and second ends;
- a first flow face at the first end;
- and a second flow face at the second end;
- (A) the media within said coiled media construction forming a plurality of flutes;
- each of the flutes having a first end positioned adjacent to the first flow face and a second end positioned adjacent to the second flow face;
- (B) a first set of selected ones of the flutes being open at the first end and closed at the second end;
- and
- (C) a second set of selected ones of said flutes being closed at the first end and open at the second end;
- (ii) a seal member oriented with respect to said coiled media construction to form a releasable, peripherally directed seal between the filter element and an internal annular sealing surface of the housing arrangement;
- (iii) a frame construction mounted on said coiled media construction;
- (A) said frame construction having a portion extending across one of said first flow face and second flow face;
- (B) said frame construction supporting said seal member;
- and
- (c) a precleaner arrangement oriented in the cover and upstream of said filter element.
16 more elements
An air cleaner comprising:
- (a) a housing arrangement including at least a cover and a body member;
- (i) said cover defining an air flow inlet;
- (b) a removeable and replaceable filter element oriented in said body member;
- said filter element including:
- (i) a coiled media construction having:
- first and second ends;
- a first flow face at the first end;
- and a second flow face at the second end;
- (A) the media within said coiled media construction forming a plurality of flutes;
- each of the flutes having a first end positioned adjacent to the first flow face and a second end positioned adjacent to the second flow face;
- (B) a first set of selected ones of the flutes being open at the first end and closed at the second end;
- and
- (C) a second set of selected ones of said flutes being closed at the first end and open at the second end;
- (ii) a seal member oriented with respect to said coiled media construction to form a releasable, peripherally directed seal between the filter element and an internal annular sealing surface of the housing arrangement;
- (iii) a frame construction mounted on said coiled media construction;
- (A) said frame construction having a portion extending across one of said first flow face and second flow face;
- (B) said frame construction supporting said seal member;
- and
- (c) a post-cleaner oriented in said housing arrangement downstream of said filter element.
16 more elements
Dependencies are inferred from the claim text.