The ornamental design for a powderpump, as shown and described.
The file of this patent contains at least one drawing/photograph executed in color. Copies of this patent with color drawing(s)/photograph(s) will be provided by the Office upon request and payment of the necessary fee.
FIG. 1 is a front view of a powder pump bearing the design;
FIG. 2 is a back view of the powder pump of FIG. 1;
FIG. 3 is a left side view of the powder pump of FIG. 1;
FIG. 4 is a right side view of the powder pump of FIG. 1;
FIG. 5 is a top view of the powder pump of FIG. 1;
FIG. 6 is a bottom view of the powder pump of FIG. 1; and,
FIG. 7 is a perspective view from the front left of the powder pump of FIG. 1.