Backflow blocking device for axial fans
AssigneeCisco Technology, Inc.
InventorsAdriana del Pilar Rangel, Quinn Bonard Gaumer, Pinlin Zhuang
Life of this patent
Estimating the term…
Abstract
A backflow blocking apparatus for axial fans may be provided. The apparatus may comprise a sheet. The sheet may comprise a first section and a second section. The first section may comprise a plurality of flaps cut out of and retained by the first section of the sheet. The second section may comprise a guard structure. The apparatus may further comprise a fold about which the first section and the second section are folded on one another. The guard structure may inhibit the movement of the plurality of flaps in a direction toward the guard structure when the first section and the second section are folded on one another.
Claims20
An apparatus comprising:
- a first section of a sheet, the first section comprising a plurality of flaps cut out of and retained by the first section of the sheet;
- a second section of the sheet, the second section comprising a guard structure;
- and
- a fold about which the first section and the second section are folded on one another, wherein the guard structure inhibits the movement of the plurality of flaps in a direction toward the guard structure when the first section and the second section are folded on one another.
An apparatus comprising:
- a first section of a sheet, the first section comprising a plurality of flaps cut out of and retained by the first section of the sheet wherein each of the plurality of flaps comprises a corresponding retention member about which each of the plurality of flaps are configured to rotate;
- and
- a second section of the sheet, the second section comprising a guard structure wherein the guard structure comprises a first plurality of cross members and a second plurality of cross members, wherein the first plurality of cross members are periductular to the second plurality of cross members.
A method comprising:
- cutting a plurality of flaps cut out of a first section of a sheet wherein the plurality of flaps are retained by the first section of the sheet;
- providing a plurality of openings in a second section of the sheet to provide a guard structure;
- and
- folding the first section and the second section on one another about a fold, wherein the guard structure inhibits the movement of the plurality of flaps in a direction toward the guard structure when the first section and the second section are folded on one another.
Dependencies are inferred from the claim text.