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US 2021/0275958 A1Published application
Fiberglass Product For A Filter Apparatus
AssigneeAmerican Air Filter Company, Inc.
InventorsAlejandro Vinardi, Matthew Shaffer, William Barrows
Life of this patent
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Abstract
In the description and drawings a fiberglass product is disclosed. The fiberglass product may have one or more fiber curl layers. The fiber curl layers may have a plurality of generally sinusoidal fiber bundles therein.
Claims24
A fiberglass product comprising:
- a first fiber curl layer on the upstream air entry side, said fiber curl layer having a plurality of fiber curl first fibers and a substantially constant first density;
- a fiberglass backing layer on the downstream air exit side opposite the air entry side, wherein the fiberglass backing layer includes a plurality of third fibers;
- a second fiber curl layer between the first fiber curl layer and the fiberglass backing layer, wherein the second fiber curl layer includes a plurality of fiber curl second fibers and a substantially constant second density.
A bag type filter apparatus comprising:
- a first upstream fiber curl layer having a plurality of generally sinusoidal first fiber bundles and individual first fibers, a downstream fiberglass backing layer having a plurality of third fiber bundles and individual third fibers, and a second upstream fiber curl layer having a plurality of generally sinusoidal second fiber bundles and individual second fibers positioned between the first upstream fiber curl layer and the downstream fiberglass backing layer;
- and
- a percentage of the individual first, second, and third fibers of each one of the layers, respectively, increases in the direction of air flow and a percentage of the first, second, and third fiber bundles of each one of the layers, respectively, decreases in the direction of air flow.
Dependencies are inferred from the claim text.