US D661036 S1
The ornamental design for a floor cleaner, as shown and described.
FIG. 1 is a perspective view of a floor cleaner which embodies our design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof, the right side view thereof being a mirror image of the left side view thereof; and,
FIG. 5 is a top view thereof.
Portions of the floor cleaner shown in broken lines form no part of the claimed design.