The ornamental design for an icecreammachinedischargevalve, as shown and described.
FIG. 1 is a perspective view of an ice cream machine discharge valve, showing my new design;
FIG. 2 is a front view of an ice cream machine discharge valve.
FIG. 3 is a rear view of an ice cream machine discharge valve.
FIG. 4 is a left side view of an ice cream machine discharge valve.
FIG. 5 is a right side view of an ice cream machine discharge valve.
FIG. 6 is a top view of an ice cream machine discharge valve.
FIG. 7 is a bottom view of an ice cream machine discharge valve; and,
FIG. 8 is a rear side perspective view of an ice cream machine discharge valve.
Any shading and cross-hatching are not features of the design but are utilized to illustrate the surface contours of the ice cream machine discharge valve design in the drawings.