Elbow Duct for an Integrated Check Valve

FIG. 1 is a perspective view of an elbow duct for an integrated check valve showing our new design with the check valve in the open position;

FIG. 2 is a perspective view of the elbow duct for an integrated check valve showing our new design with the check valve in the closed position;

FIG. 3 is a front view of the elbow duct for an integrated check valve showing our new design with the check valve in the open position;

FIG. 4 is a rear view of the elbow duct for an integrated check valve showing our new design with the check valve in the open position;

FIG. 5 is a left side view of the elbow duct for an integrated check valve showing our new design with the check valve in the open position;

FIG. 6 is a right side view of the elbow duct for an integrated check valve showing our new design with the check valve in the open position;

FIG. 7 is a top view of the elbow duct for an integrated check valve showing our new design with the check valve in the open position;

FIG. 8 is a bottom view of the elbow duct for an integrated check valve showing our new design with the check valve in the open position;

FIG. 9 is a front view of the elbow duct for an integrated check valve showing our new design with the check valve in the closed position;

FIG. 10 is a rear view of the elbow duct for an integrated check valve showing our new design with the check valve in the closed position;

FIG. 11 is a left side view of the elbow duct for an integrated check valve showing our new design with the check valve in the closed position;

FIG. 12 is a right side view of the elbow duct for an integrated check valve showing our new design with the check valve in the closed position;

FIG. 13 is a top view of the elbow duct for an integrated check valve showing our new design with the check valve in the closed position; and,

FIG. 14 is a bottom view of the elbow duct for an integrated check valve showing our new design with the check valve in the closed position.

The broken lines shown in the figures form no part of the claimed design.