The ornamental design for a refrigerating apparatus, as shown and described.
FIG. 1 is a front, right perspective view of a refrigerating apparatus showing my new design, the rear, left side perspective views being mirror images thereto;
FIG. 2 is a front view thereof, the rear view being identical thereto; and,
FIG. 3 is a right side view thereof, the left side view being identical thereto.