FIG. 1 is a perspective view of a window blind tilt actuator embodying the new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is an elevational view of the left side of FIG. 2, the right side thereof being a mirror image of the left side shown; and,
FIG. 4 is an end elevational view thereof, the end opposite being a mirror image of the end shown.
The rear view forms no part of the claimed design.