We claim the ornamental design for a head for a mixing apparatus, as shown and described.
FIG. 1 is a perspective view of a head for a mixing apparatus embodying the invention.
FIG. 2 is a top plan view of the head for a mixing apparatus shown in FIG. 1.
FIG. 3 is a bottom plan view of the head for a mixing apparatus shown in FIG. 1.
FIG. 4 is a left side elevation view of the head for a mixing apparatus shown in FIG. 1.
FIG. 5 is a right side elevation view of the head for a mixing apparatus shown in FIG. 1.
FIG. 6 is a front elevation view of the head for a mixing apparatus shown in FIG. 1; and,
FIG. 7 is a rear elevation view of the head for a mixing apparatus shown in FIG. 1.
In FIGS. 1 and 2, the stippling is intended to indicate a contrast in appearances. Throughout the drawings, the broken lines are for the purpose of illustrating environment only and form no part of the claimed design.