FIG. 1 is a perspective view thereof taken of the front and one side showing a first embodiment of our new design.

FIG. 2 is a front elevation view of FIG. 1;

FIG. 3 is a rear elevation view of FIG. 1;

FIG. 4 is an enlarged top plan view of FIG. 1;

FIG. 5 is an enlarged bottom plan view of FIG. 1;

FIG. 6 is a left side elevation view of FIG. 1;

FIG. 7 is a right side elevation view of FIG. 1;

FIG. 8 is a left side elevation view of a second embodiment, with the battery pack inserted;

FIG. 9 is a right side elevation view of FIG. 8; and,

FIG. 10 is a front elevation view of FIG. 8.