FIG. 1 is a front elevational view of a belt adjuster of the claimed design;
FIG. 2 is a rear elevational view of the design of FIG. 1;
FIG. 3 is a bottom view of the design of FIG. 1;
FIG. 4 is a top view of the design of FIG. 1;
FIG. 5 is a right side view of the design of FIG. 1, the left side view is symmetrical to the right side view;
FIG. 6 is a cross-sectional view of the design of FIG. 1, taken on section lines 6—6 of FIG. 1; and,
FIG. 7 is a perspective view of the design of FIG. 1.