Increased flow capacity filter
AssigneeNelson Industries, Inc.
InventorsJeffrey S. Morgan, Jon S. Wake, Kent J. Kallsen
Life of this patent
Estimating the term…
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AssigneeNelson Industries, Inc.
InventorsJeffrey S. Morgan, Jon S. Wake, Kent J. Kallsen
Estimating the term…
A filter element (22) includes pleated filter media (26) having a plurality of pleats (28) in a closed annular loop having an outer perimeter (30) defined by a plurality of outer pleat tips (32), and an inner perimeter (34) defined by a plurality of inner pleat tips (36), the closed annular loop having a hollow interior (38) extending along an axis (40), wherein fluid to be filtered flows laterally through the filter media and flows axially (58) in the hollow interior (38). The filter element (22) has an axial flow passage (56) along the axis (40) and circumscribing the hollow interior (38) and has a flow perimeter (60) greater than the inner perimeter (34) of the filter element defined by the inner pleat tips (36). An end cap (66) of resilient compressible material at the axial end (62) of the filter element bears radially between and is radially compressed between an outer liner (102) and a flow tube (90) at the enlarged flow passage (56).
A filter element comprising pleated filter media having a plurality of pleats in a closed loop having an outer perimeter defined by a plurality of outer pleat tips, and an inner perimeter defined by a plurality of inner pleat tips, said loop having a hollow interior extending along a given axis, wherein fluid to be filtered flows laterally through said filter media, and flows axially in said hollow interior, said filter element having an axial flow passage extending along said axis and circumscribing said hollow interior and having a flow perimeter greater than said inner perimeter.
A filter element comprising pleated filter media having a plurality of pleats in a closed loop having an outer perimeter defined by a plurality of outer pleat tips, and an inner perimeter defined by a plurality of inner pleat tips, said loop having a hollow interior extending along a given axis, wherein fluid to be filtered flows laterally through said filter media, and flows axially in said hollow interior, said filter element having an axial flow passage extending along said axis, said filter element having first and second axial ends, said first axial end being open and providing said axial flow passage therethrough, an outer liner circumscribing said filter element along said outer pleat tips and extending beyond said pleats, a flow tube communicating with said hollow interior along said flow passage and extending axially from said first axial end of said filter element, a first end cap of resilient compressible material at said first axial end of said filter element and bearing radially between and radially compressed between said outer liner and said flow tube.
Dependencies are inferred from the claim text.