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US 7,001,440 B1Granted
Fluid filter assembly with a fin array
AssigneeWix Filtration Corp LLC
InventorDonald Troy Chilton
Life of this patent
Estimating the term…
Abstract
An air filter element includes an annular filter media having an end cap with an elongated sleeve portion having a unitary array of canted fins and a unitary annular disk partially closing one end. The end cap is preferably made of high impact polypropylene. An annular gasket made of foam rubber or polyurethane is adhered to the unitary annular disk portion, preferably by a two shot molding step.
Claims16
A filter for removing particulate matter from air, comprising:
- an annular filter media disposed in a housing having an air inlet in a side of said housing and an air outlet in an end of said housing;
- the annular filter media having a first end and a second end defining a longitudinal axis, and an outer dirty side surface of a first diameter and an inner clean side surface of a second diameter circumscribing said longitudinal axis;
- a first end cap having an annular sleeve portion with first and second ends, the annular sleeve portion circumscribing said longitudinal axis, the first end of the sleeve portion being partially closed by a radially extending annular disk;
- an array of fins extending radially outward from the sleeve portion;
- and
- an annular gasket of a compressible or flexible gasket material affixed to the annular disk portion, extending in the direction of the longitudinal axis, and provided to seal with the outlet of the housing,
- wherein said air inlet faces said annular sleeve portion to direct air in a direction orthogonal to said longitudinal axis.
4 more elements
An air filter element comprising:
- an annular filter media adapted for enclosure in a housing having an air inlet and an air outlet;
- the annular filter media having a first end and a second end defining a longitudinal axis, and an outer dirty side surface of a first diameter and an inner clean side surface of a second diameter circumscribing said longitudinal axis;
- an end cap molded of a high impact polypropylene copolymer, the end cap having an annular sleeve portion circumscribing said longitudinal axis with first and second ends, the sleeve portion and the second end thereof having an inside diameter which complements the outside diameter of the annular filter media, the first end of said sleeve portion being partially closed by a radially extending annular disk portion unitary with the annular sleeve portion and having a width substantially the same as that of the first end of the filter media, the first end of the sleeve portion covers the first end of the filter media;
- an array of fins extending radially outward from the sleeve portion, the fins being made of high impact polypropylene and being unitary with the sleeve portion;
- and
- an annular gasket of one of foam rubber gasket material and silicon material co-molded with the annular disk and extending in the direction of the axis, the annular gasket provided to seal with the outlet of the housing, wherein said air inlet faces said annular sleeve portion to direct air in a direction orthogonal to said longitudinal axis.
3 more elements
Dependencies are inferred from the claim text.