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US 12,746,500 B2Granted
Filter media, filter media packs, and filter elements
AssigneeDonaldson Company, Inc.
InventorsDaniel E. Adamek, Scott M. Brown, Mark A. Sala
Life of this patent
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Abstract
Embodiments include an air filtration media pack comprising a plurality of layers of fluted media, each layer comprising a facing sheet and a fluted sheet, the fluted sheet comprising a first plurality of flutes and a second plurality of flutes, the first and second plurality of flutes being arranged in a parallel flow configuration; wherein the first and second plurality of flutes exhibit regular repeating differences in flute shape, flute size, flute height, flute width, cross-flute area, or filter media.
Claims19
An air filtration media pack comprising:
- filter media comprising a first plurality of flutes, a second plurality of flutes, and a third plurality of flutes:
- the filter media containing the first, second, and third plurality of flutes being arranged in a parallel flow configuration;
- wherein the first, second;
- and third plurality of flutes exhibit differences in flute shape, flute size, flute height, flute width, or cross-flute area;
- wherein the interior of the flutes comprise substantially open interior volumes prior to use;
- wherein the first plurality of flutes is arranged in a first plurality of layers of the fluted media, and the second plurality of flutes is arranged in a second plurality of layers of the filter media.
3 more elements
Dependencies are inferred from the claim text.