The ornamental design for a partition apparatus, as shown and described.
FIG. 1 is a front-top-right perspective view of a partition apparatus showing my new design;
FIG. 2 is a front-top-left perspective view thereof;
FIG. 3 is a front-bottom-left perspective view thereof;
FIG. 4 is a front elevational view thereof, the rear elevational view being a mirror image thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a right-side elevational view thereof, the left-side elevational view being a mirror image thereof; and,
FIG. 8 is a perspective view of the detachable base feature of the partition apparatus in a folded configuration, shown separately to reveal aspects of the design that may not be apparent in the other views.
The broken lines showing of hinges and casters in FIGS. 1-4 and 6-8 and the handle in FIGS. 1-2, 4-5 and 8 are included for the purpose of showing environmental structure and form no part of the claimed design.