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US 2019/0358575 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.
Claims31
1-23. (canceled)
An air filter cartridge comprising:
- (a) a filter media pack having an inlet end and an opposite outlet end, and an outer periphery, wherein:
- (i) the media pack comprises alternating fluted sheet and facing sheet;
- (ii) the filter media pack comprises flutes extending from the inlet to the outlet end;
- and
- (iii) the filter media pack is closed to flow of unfiltered air into the inlet end and then outwardly from the outlet end without filtering;
- (b) a seal member comprising at least a portion thereof molded around the outer periphery of the filter media pack, wherein:
- (i) the seal member includes an outwardly directed surface constructed to form an outwardly directed radial seal when the air filter cartridge is installed in an air cleaner housing;
- and
- (ii) a portion of the seal member is located in at least a portion of the flutes of the filter media pack along the outer periphery of the filter media pack.
6 more elements
An air filter cartridge comprising:
- (a) a filter media pack having an inlet end and an opposite outlet end, and an outer periphery, wherein:
- (i) the filter media pack comprises alternating fluted sheet and facing sheet;
- and
- (ii) the filter media pack comprises flutes extending from the inlet end to the outlet end, wherein the inlet flute ends are closed by sealant at or near the outlet end of the filter media pack, and the outlet flute ends are closed by sealant at or near the inlet end of the filter media pack;
- and
- (b) a seal member comprising at least a portion thereof molded around the outer periphery of the filter media pack adjacent the outlet end of the filter media, wherein:
- (i) the seal member includes an outwardly directed surface constructed to form an outwardly directed radial seal when the air filter element is installed in an air cleaner housing;
- and
- (ii) a portion of the seal member is located in at least a portion of the flutes of the filter media pack along the outer periphery of the filter media pack at the outlet end of the filter media pack.
6 more elements
Dependencies are inferred from the claim text.