Circulation and external venting unit

Details Circulation and external venting unit Circulation and external venting unit

2004-08-04

2009-10-20

McAllister, Steven B (Department: 3749)

Ventilation

Electronic cabinet

C361S679460, C361S679480, C361S679490, C361S695000

Reexamination Certificate

active

07604534

ABSTRACT:
An air circulation and ventilation unit is provided including a housing configured to fit at least partially over the ceiling of an equipment cabinet including fitting over at least one vent in the ceiling of the cabinet, so that the interior of the housing is in communication with the interior of the cabinet, the housing includes a housing vent moveable between an open position in which air may flow between the outside of the housing and the inside of the housing and a closed position in which little or no air can flow between the outside of the housing and the inside of the housing, and a controller to control the position of the housing vent.

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