The ornamental design of a vacuuminterrupter, as shown and described.
FIG. 1 is a top perspective view of a vacuum interrupter showing our new design;
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a right-side view thereof;
FIG. 5 is an enlarged top plan view thereof;
FIG. 6 is an enlarged bottom plan view thereof;
FIG. 7 is an enlarged top perspective view thereof; and,
FIG. 8 is an enlarged bottom perspective view thereof.
A rear view of the vacuum interrupter is a mirror image of the front view, and therefore omitted. A left-side view of the vacuum interrupter is a mirror image of the right-side view, and therefore omitted.
The broken line portion of the figure drawings is included to show unclaimed subject matter only and forms no part of the claimed design.