Propeller fan

FIG. 1 is a front perspective view of the front, right, and top side of a propeller fan showing our new design;

FIG. 2 is a rear perspective view of the rear, right, and top side of a propeller fan showing our new design;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is another perspective view of the propeller fan in a position of use.

The broken lines in FIG. 9 , which show an equipment housing, represent the environment for use. All other broken lines in the drawing illustrate portions of the propeller fan. The broken lines form no part of the claimed design.