Fire Damper

FIG. 1 is a front perspective view of a fire damper, showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is an enlarged plan view of its bottom surface; and,

FIG. 7 is an enlarged plan view of its top surface.

The broken lines in the drawings illustrate the portions of the fire damper, which form no part of the claimed design.