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US 9,440,178 B2Granted
Pleated filter media
AssigneeCaterpillar Inc.
InventorBryant Morris
Life of this patent
Estimating the term…
Abstract
A filter element includes a center tube and a blank of a filter media. The center tube has a first end and a second end. The blank is folded into a plurality of triangles. Each triangle is disposed adjacent to another of the plurality of triangles to form a series of triangular pleats to form a pleated filter media. The pleated filter media is disposed about the center tube. A cross sectional area of the pleated filter media proximal to each of the first end and the second end is greater than a cross sectional area of the pleated filter media at a point between the first end and the second end.
Claims17
A filter element, comprising:
- a center tube having a first end and a second end;
- a blank of a filter media folded into a plurality of triangles, wherein each triangle is disposed adjacent to another of the plurality of triangles to form a series of triangular pleats to form a pleated filter media, the pleated filter media being disposed about the center tube, wherein a cross sectional area of the pleated filter media proximal to each of the first end and the second end is greater than a cross sectional area of the pleated filter media at a point between the first end and the second end;
- and
- the blank of filter media further comprises at least one of a first pleated extended portion to extend the pleated filter media along a first truncated cone shaped surface defined by the pleated filter media from a relatively minimum cross sectional area to the cross sectional area at the first end;
- and a second pleated extended portion to extend the pleated filter media along a second truncated cone shaped surface defined by the pleated filter media from the relatively minimum cross sectional area to the cross sectional area at the second end.
2 more elements
A filter cartridge, comprising:
- a filter element including:
- a center tube having a first end and a second end;
- and
- a blank of a filter media folded into a plurality of triangles, wherein each triangle is disposed adjacent to another of the plurality of triangles to form a series of triangular pleats to form a pleated filter media, the pleated filter media being disposed about the center tube, wherein a cross sectional area of the pleated filter media proximal to each of the first end and the second end is greater than a cross sectional area of the pleated filter media at a point between the first end and the second end;
- the blank of filter media further comprising a first pleated extended portion to extend the pleated filter media along a first truncated cone shaped surface defined by the pleated filter media from a relatively minimum cross sectional area to the cross sectional area at the first end;
- and a second pleated extended portion to extend the pleated filter media along a second truncated cone shaped surface defined by the pleated filter media from the relatively minimum cross sectional area to the cross sectional area at the second end;
- a top cap disposed at the first end;
- and
- a bottom cap disposed at the second end.
6 more elements
A filter housing, comprising:
- an inlet;
- an outlet;
- an internal volume to house a filter element, the filter element including:
- a center tube having a first end and a second end;
- and
- a blank of a filter media folded into a plurality of triangles, wherein each triangle is disposed adjacent to another of the plurality of triangles to form a series of triangular pleats to form a pleated filter media, the pleated filter media being disposed about the center tube, wherein a cross sectional area of the pleated filter media proximal to each of the first end and the second end is greater than a cross sectional area of the pleated filter media at a point between the first end and the second end;
- the blank of filter media further comprising a first pleated extended portion to extend the pleated filter media along a first truncated cone shaped surface defined by the pleated filter media from a relatively minimum cross sectional area to the cross sectional area at the first end;
- and a second pleated extended portion to extend the pleated filter media along a second truncated cone shaped surface defined by the pleated filter media from the relatively minimum cross sectional area to the cross sectional area at the second end;
- a top cap disposed at the first end;
- a bottom cap disposed at the second end;
- and
- a toroidal chamber disposed about a center portion of the filter element configured to evenly disperse a flow of incoming fluid about the filter element.
9 more elements
Dependencies are inferred from the claim text.