Abstract: A vent register includes a set of vanes and a mechanical assembly. Each vane is pivotably affixed to a respective stationary point to be rotatable about the stationary point. The mechanical assembly interconnects the vanes so that all of the vanes rotate together in response to one of the vanes being actuated to rotate. At least one of the vanes has an orientation different than at least another one of the vanes such that the at least one of the vanes and the at least another one of the vanes point in different directions as the vanes are rotated.

Abstract: A vent register includes a control vane, top and bottom lazy vanes, and a cam having an opening and top and bottom slots. The control vane includes a pin slidingly received in the opening and is actuatable to pivot upward and generate a force acting on the cam thereby causing the cam to pivot to a tilted-down position and pivot downward and generate a force acting on the cam thereby causing the cam to pivot to a tilted-up position. The top vane includes a pin slidingly received in the top slot and is actuated by the cam pivoting to the tilted-down position to pivot upward whereby the top vane pivots with the control vane. The bottom vane includes a pin slidingly received in the bottom slot and is actuated by the cam pivoting to the tilted-up position to pivot downward whereby the bottom vane pivots downward with the control vane.