Secondary air tight collar

Description

FIG. 1 is a perspective view of the secondary air tight collar, showing the new design;

FIG. 2 is a front elevational view of the secondary air tight collar thereof;

FIG. 3 is a top plan view of the secondary air tight collar thereof; and,

FIG. 4 is a bottom plan view of the secondary air tight collar thereof.

The rear elevational view of the secondary air tight collar is a mirror image of the front elevational view of the secondary air tight collar shown in FIG. 2.

The left side elevational view of the secondary air tight collar is a mirror image of the front elevational view of the secondary air tight collar shown in FIG. 2.

The right side elevational view of the secondary air tight collar is a mirror image of the front elevational view of the secondary air tight collar shown in FIG. 2.

Claims

The ornamental design for a secondary air tight collar, as shown and described.