FIG. 1 is a perspective view of a portion of a cushion for use with a mask assembly in the application o continuous positive airway pressure (CPAP) showing our design;

FIG. 2 is a view identical to that shown in FIG. 1 in which the dashed lines have been removed for clarity;

FIG. 3 is a left side view thereof with the right side view being a mirror image thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a front perspective view thereof with a mask frame in dashed lines; and,

FIG. 9 is an enlarged fragmentary cross-sectional view thereof, taken along the line 9—9 of FIG. 1.

The dashed lines shown in FIGS. 1 and 3-9 disclose unclaimed subject matter, are for environmental purposes only, and thus form no part of the claimed design. The dotted lines shown in the figures represent the border between claimed subject matter and unclaimed subject matter and form no part of the claimed design.