US 6,705,833 B2 · Airflow flapper valve

Abstract

A blower apparatus includes a blower housing having at least one airflow channel. A flexible sheet having at least one flap is coupled to the blower housing such that the flap overlaps the channel to form a one-way valve. A plurality of flaps may be positioned over a plurality of channels to form a blower apparatus with a plurality of one-way valves. The flexible sheet may include mounting features such as holes to facilitate assembly. For example, in one embodiment, the flexible sheet is pressed onto a plurality of pegs residing on the blower housing such that the holes receive the pegs. In another embodiment, the flexible sheet is pressed onto a plurality of pegs residing on an exhaust cover that is subsequently attached to the blower housing.

Claims11

Dependent claims

An apparatus comprising:

an equipment enclosure having a plurality of air exchange interfaces for exchanging air between the interior and exterior of the enclosure;
a plurality of blowers, each blower residing at one of the air exchange interfaces, each blower further comprising:
a blower housing having a plurality of airflow channels;
a flexible sheet having a plurality of flaps;
and
an exhaust cover, wherein the flexible sheet is disposed between the blower housing and the exhaust cover, wherein each flap is disposed over at least one channel to form a one-way valve, wherein each of the exhaust cover and the blower housing provides a support member between adjacent flaps.

3 more elements

Dependencies are inferred from the claim text.

Airflow flapper valve

Life of this patent

Airflow flapper valve

Life of this patent

Abstract

Claims11