The ornamental design for an overflow vent irrigationdevice, substantially as shown and described.
FIG. 1 is a top perspective view of the overflow vent irrigation device;
FIG. 2 is a top perspective view of the overflow vent irrigation device with a cap shown removed;
FIG. 3 is a top view corresponding to FIG. 1;
FIG. 4 is a bottom view corresponding to FIG. 1;
FIG. 5 is a front view corresponding to FIG. 1;
FIG. 6 is a back view corresponding to FIG. 1;
FIG. 7 is a right-side view corresponding to FIG. 1; and,
FIG. 9 is a right-side view shown as it may be installed in a sink, the sink shown as a cut-away view; wherein the cut-away view of the sink shown in FIG. 9 is shown in dashed lines to illustrate environment only that forms no part of the claim.