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US 2009/0255227 A1Published application
Seal arrangement for filter element; filter element assembly; and, methods
AssigneeDonaldson Company, Inc.
InventorsKevin Schrage, Troy Murphy, Donald Raymond Mork
Life of this patent
Estimating the term…
Abstract
A filter element arrangement is provided which includes a media pack comprising Z-filter media, a preform and an overmold sealing a portion of the interface between the preform and the media pack, and also forming an air cleaner seal for the filter element. The overmold preferably comprises molded, foamed, polyurethane. A variety of media pack shapes can be used.
Claims20
A filter element comprising:
- (a) a filter media pack comprising filter media defining first and second, opposite, flow faces having a set of flutes closed proximate the second flow face;
- and, a set of flutes closed proximate the first flow face;
- (i) the media pack comprising a fluted sheet of media attached to a second sheet of media and wound;
- (b) a seal support having an extension disposed at least partially over the second flow face;
- the extension having:
- (i) an interior surface;
- (ii) a surface opposite the interior surface;
- and,
- (iii) an end remote from the filter media pack;
- (A) the inner surface and the surface opposite being positioned at opposite sides of the end;
- (c) a seal component molded-in-place on, and around, the extension;
- (i) the seal component including a portion on the interior surface of the seal support and a portion on the surface of the seal support opposite the interior surface;
- and,
- (ii) the portion of the seal component on the surface of the seal support opposite the interior surface defining a seal surface configured to form an outwardly directed radial seal with a housing;
- and,
- (d) a projection on the seal support projecting from the interior surface of the extension;
- (i) the projection projecting in a direction different from a direction of projection of the extension;
- and,
- (ii) the projection being positioned at a location between the filter media pack and the end of the seal support remote from the filter media pack.
16 more elements
A filter element operably installed in a housing of an air cleaner;
- the filter element comprising:
- (a) a filter media pack comprising filter media having a set of flutes closed proximate a second flow face;
- and, a set of flutes closed proximate a first flow face;
- (i) the media pack comprising a fluted sheet of media attached to a second sheet of media and wound;
- (ii) a seal support having an extension disposed at least partially over the second flow face;
- the extension having an end remote from the filter media pack:
- (iii) a seal component molded-in-place on, and around, the extension;
- (A) the seal component has a seal surface forming an outwardly directed radial seal with the housing of the air cleaner;
- and,
- (iv) a projection on the seal support projecting toward a central axis of the media pack;
- (A) the projection being positioned at a location between the second flow face and the end of the seal support remote from the filter media pack.
8 more elements
A filter element comprising:
- (a) a filter media pack comprising filter media having a set of flutes closed proximate a second flow face;
- and, a set of flutes closed proximate a first flow face;
- (i) the media pack comprising a fluted sheet of media attached to a second sheet of media and wound;
- (b) a seal support having an extension disposed at least partially over the second flow face;
- the extension having:
- (i) an interior surface;
- (ii) a surface opposite the interior surface;
- and,
- (iv) an end remote from the filter media pack;
- (A) the inner surface and the surface opposite being positioned at opposite sides of the end;
- (c) a seal support having an extension disposed at least partially over the second flow face;
- the extension having an interior surface, facing radially inwardly and an opposite surface;
- (d) a seal component molded-in-place on, and around, the extension;
- (i) the seal component having an outer seal surface;
- and,
- (e) a projection on the seal support projecting radially inwardly from the interior surface of the extension;
- (i) the projection being positioned at a location between the filter media pack and the end of the seal support remote from the filter media pack.
14 more elements
Dependencies are inferred from the claim text.