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. The broken lines form no part of the claimed design.