The ornamental design for a sink mounted handdryer, as shown and described.
FIG. 1 is a perspective view of a sink mounted hand dryer showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is another perspective view thereof, shown in an environment of use.
In the drawings, the broken lines illustrate portions of the article that form no part of the claimed design. In FIG. 8, the broken lines illustrating a sink illustrate environmental subject matter only and form no part of the claimed design.