FIG. 1 is a perspective view of a processing apparatus showing our new design;

FIG. 2 is a perspective view of a processing apparatus showing our new design with its top up;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a back elevational view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side elevational view thereof

FIG. 7 is a top plan elevational view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken line showing of a cylindrical form on the top surface of the processing apparatus in the figure drawings forms no part of the claimed design.