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US 8,685,128 B2Granted
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.
Claims35
An air filter cartridge comprising:
- (a) a media pack having an inlet end and an opposite outlet end, wherein the media pack is constructed to provide a straight through flow configuration, and the media pack is closed to flow of unfiltered air into the inlet end and then outwardly from the outlet end without filtering;
- (b) a preform arranged at one of the media pack ends and including a housing seal support section having an interior surface and an opposite exterior surface;
- (c) an air cleaner seal molded to the preform and supported by the housing seal support section, and having a surface configured to form a radially directed seal with an air cleaner housing;
- and (d) a material molded to the preform and the media pack and adhering the preform to the media pack.
1 more element
An air filter cartridge comprising:
- (a) a media pack having an inlet end and an opposite outlet end, wherein the media pack is constructed to provide a straight through flow configuration, and the media pack is closed to flow of unfiltered air into the inlet end and then outwardly from the outlet end without filtering;
- (b) a preform arranged at one of the media pack ends and including a housing seal support section having an interior surface and an opposite exterior surface, and forming a joint between the preform and the media pack;
- (c) an air cleaner seal molded to the preform and supported by the housing seal support section, and having a surface configured to form a radially directed seal with an air cleaner housing;
- and (d) a material molded to the preform and the media pack and over the joint between the preform and the media pack thereby adhering the preform to the media pack.
1 more element
A method of manufacturing an air filter cartridge, the method comprising:
- (a) molding an air cleaner seal onto a preform to form a radially directed seal with an air cleaner housing, and molding a material onto the preform and a media pack for adhering the preform to the media pack, wherein:
- (i) the media pack comprises an inlet end and an opposite outlet end, wherein the media pack is constructed to provide a straight through flow configuration, and the media pack is closed to flow of unfiltered air into the inlet end and then outwardly from the outlet end without filtering;
- (ii) the preform is arranged at one of the media pack ends and includes a housing seal support section having an interior surface and an opposite exterior surface, and wherein the air cleaner seal is molded to the housing seal support section.
An air filter cartridge comprising:
- (a) a media pack having an inlet end and an opposite outlet end, wherein the media pack comprises alternating fluted sheet and facing sheet defining flutes, and the media pack is closed to flow of unfiltered air into the inlet end and then outwardly from the outlet end without filtering;
- (b) a preform arranged at one of the media pack inlet end or the media pack outlet end, and including a housing seal support section;
- (c) an air cleaner seal on the preform and supported by the housing seal support section;
- and
- (d) a material adhering the preform to the media pack, wherein a portion of the material enters into the flutes of the media pack.
2 more elements
Dependencies are inferred from the claim text.