Insulating device

FIG. 1 is a top, front, left perspective view of an insulating device showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is an enlarged view of the region identified by the number “ 8 ” in FIG. 3 thereof.

The dashed broken lines in the drawings illustrate unclaimed portions of the insulating device. The dash-dot broken lines in the drawings illustrate boundaries of the claimed design. The stipple shading in the drawings is a drawing convention to represent curvature; it does not illustrate material, surface ornamentation, or surface decoration. The enlarged view of the region identified by the number “ 8 ” in FIG. 3 depicts unclaimed portions of the insulating device, and forms no part of the claimed design.