The ornamental design for a vacuumcleaner, as shown and described.
FIG. 1 is a front perspective view of a vacuum cleaner showing our new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left-side elevation view thereof;
FIG. 5 is a right-side elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is an exploded bottom perspective view thereof showing additional unclaimed environment; and,
FIG. 9 an enlarged front perspective view of the portion encircled in FIG. 1.
The dot-dot-dash lines which encircle portions of the design and the broken lines which illustrate unclaimed portions of the vacuum cleaner form no part of the claimed design.