FIG. 1 is a front elevational view thereof;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a right side elevational view thereof, a left side elevational view thereof being a mirror image;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a cross sectional view thereof taken along line A—A of FIG. 2;
FIG. 7 is a cross sectional view thereof taken along line B—B of FIG. 2; and,
FIG. 8 is an enlarged cross sectional view thereof taken along line C—C and D—D of FIG. 7.