Spacer and filter assembly utilizing the spacer

Liquid purification or separation – Filter – Within flow line or flow line connected close casing

Reexamination Certificate

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Details

C210S454000, C210S456000, C210S497010

Reexamination Certificate

active

06843377

ABSTRACT:
An end cap of a filter element has canted fins in an annular space between a filter element and filter housing for imparting a rotary motion to a fluid prior to the fluid passing through the filter element. The end cap includes a plurality of axially extending legs upstream of the fins, which legs engage a nutplate. Spaces between the legs provide an inlet allowing dirty fluid to flow to the outside surfaces of the filter element. The fins remove large particles from the fluid by centrifugal force so that large particles do not add to the contaminant load in the filter elements.

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