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Airflow flapper valve

  • US 6,705,833 B2
  • Filed: 11/15/2001
  • Issued: 03/16/2004
  • Est. Priority Date: 11/15/2001
  • Status: Expired due to Fees
First Claim
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1. 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.

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