The ornamental design for a vacuumpump, 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.
1. Vacuum pump
1.1 is a is a view of a side of the vacuum pump;
1.2 is a view of a the front side of the vacuum pump;
1.3 is a view of the other side of the vacuum pump;
1.4 is a view of a rear side of the vacuum pump;
1.5 is a view of a top side of the vacuum pump;
1.6 is a view of a bottom side of the vacuum pump;
1.7 is a first perspective view of the vacuum pump.