FIG. 1 is a front perspective view of a first version of our design;
FIG. 2 is a front elevational view;
FIG. 3 is a rear elevational view;
FIG. 4 is a top plan view;
FIG. 5 is a bottom plan view;
FIG. 6 is a cross-sectional view taken along the line 6-6 of FIG. 2;
FIG. 7 is a fragmentary cross-sectional view of a portion of FIG. 6;
FIG. 8 is a left side elevational view;
FIG. 9 is a right side elevational view;
FIG. 10 is a cross-sectional view taken along the line 10-10 of FIG. 2;
FIG. 11 is a fragmentary cross-sectional view taken of a portion of FIG. 10;
FIG. 12 is a fragmentary cross-sectional view taken of a portion of FIG. 10;
FIG. 13 is a front perspective view of a second version of our design;
FIG. 14 is a front elevational view;
FIG. 15 is a rear elevational view;
FIG. 16 is a top plan view;
FIG. 17 is a bottom plan view;
FIG. 18 is a cross-sectional view taken along the line 18-18 of FIG. 14;
FIG. 19 is a fragmentary cross-sectional view of a portion of FIG. 18;
FIG. 20 is a left side elevational view;
FIG. 21 is a right side elevational view;
FIG. 22 is a cross-sectional view taken along the line 22-22 of FIG. 14;
FIG. 23 is a fragmentary cross-sectional view taken of a portion of FIG. 22; and,
FIG. 24 is a fragmentary cross-sectional view taken of a portion of FIG. 22.
The broken lines in the drawings depict environment that forms no part of the claimed design. The broken line circles in FIGS. 6, 7, 10, 18, 19, and 22 indicate boundaries of enlarged views and form no part of the claimed design.