Portable Paint Pump

FIG. 1 is a perspective view of the portable paint pump. FIG. 2 is a front view of the portable paint pump. FIG. 3 is a rear view of the portable paint pump. FIG. 4 is a left side view of the portable paint pump. FIG. 5 is a right side view of the portable paint pump. FIG. 6 is a top view of the portable paint pump; and, FIG. 7 is a bottom view of the portable paint pump. The details shown in broken lines form no part of the claimed design.