Impeller

FIG. 1 is a front elevation view of an impeller showing my design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a perspective view thereof;

FIG. 8 is another perspective view thereof; and,

FIG. 9 is a cross-sectional view along line 9 - 9 in FIG. 6 .

The portion shown in broken lines is for illustrative purposes only and forms no part of the claimed design.