The ornamental design for an operator for a closureelement, as shown and described.
FIG. 1 is a front, top and right side perspective view of our operator for
a closure element; FIG. 2 is a right side elevation view with a
longitudinal section through the center thereof; FIG. 3 is a left side
elevation view thereof; FIG. 4 is a front elevation view thereof; FIG. 5
is a rear elevation view thereof; and, FIG. 6 is a bottom view thereof.
The portion of the operator for a closure element shown in dotted lines is
for illustrative purposes only in FIGS. 1-6 and does not constitute a part
of the claimed design. The designations top, bottom, left side and right
side are arbitrary in that the operator for a closure element can be used
in different orientations.