Patent ID: 8020549

Claim:
A telescoping downdraft ventilator comprising: a housing having a track; a vent dimensioned to fit within the housing and movable along a path of travel; a drive assembly operably coupled with the vent; and a guide attached to the vent for engaging the track, wherein the guide is coupled with a bias element that biases the guide away from the vent and wherein the bias element applies a biasing force on the guide that is perpendicular to the path of travel of the vent; wherein a) the bias element is a compression spring and the guide has an inner cavity that houses the compression spring; b) the track has a trapezoidal cross-section and a portion of the guide that engages the track has a trapezoidal cross-section that is sized to be received by the track; and c) the guide is coupled with a retaining member positioned in an opening in the vent so that the guide extends through the opening to engage the track.