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US 2008/0184684 A1Published application
Multilayered long life filter using convoluted foam
AssigneeVisteon Global Technologies, Inc.
InventorsNeville J. Bugli, Mark D. Hellie
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Abstract
A filtration device is disclosed, wherein filtering layers are formed from foam and include convolutions formed in at least one surface thereof.
Claims20
A filter element comprising:
- a plurality of filtering layers adapted to be disposed in a filter housing, wherein at least one surface of at least one filtering layer is formed from foam and includes at least one convoluted surface.
A filter element comprising
- a plurality of foam filtering layers, wherein each of the foam filtering layers includes at least one convoluted surface.
A filter element comprising:
- a first filtering layer adapted to be disposed in a filter housing;
- a second filtering layer disposed adjacent the first filtering layer in the filter housing;
- a third filtering layer disposed adjacent the second filtering layer in the filter housing;
- and
- a fourth filtering layer disposed adjacent the third filtering layer in the filter housing, wherein at least one surface of at least one of the first filtering layer, the second filtering layer, the third filtering layer, and the fourth filtering layer is formed from foam and includes at least one convoluted surface.
2 more elements
Dependencies are inferred from the claim text.