Patent ID: 7611403

Claim:
A ventilation system, comprising: a housing member having a front face cross-section plane; a fan system operable to move a volume of gas downstream positioned relative to said housing member; a first door and a second door extending from a first portion of said housing member and downstream of the fan system; and a door positioning member extending between a first end and a second end, wherein the first end is connected at the first portion of the housing that is upstream of the second end that is connected to a structure downstream of the first portion; wherein the door positioning member is operable to allow the first door and the second door to move near one another; wherein the door positioning member is operable to move with the first and second door while they are near one another and allow a selected movement of at least one of the first door or the second door, while near one another, passed 90 degrees relative to the front face cross-section plane of the housing member.