FIG. 1 is a side view of the sack opener of the invention, the opposite side being a mirror image thereof;
FIG. 2 is a top plan view of the invention;
FIG. 3 is a bottom plan view of the invention;
FIG. 4 is an enlarged right-end view of the invention;
FIG. 5 is an enlarged left-end view of the invention;
FIG. 6 is a left-side view of the cutter head of the sack opener of this invention with the blade retracted and the handle removed, the opposite side being a mirror image thereof;
FIG. 7 is a top plan view of the cutter head of FIG. 6;
FIG. 8 is a bottom plan view of the cutter head of FIG. 6;
FIG. 9 is an enlarged right-end view of the cutter head of FIG. 6;
FIG. 10 is an enlarged left-end view of the cutter head of FIG. 6;
FIG. 11 is a left-side view of the cutter head of FIG. 6 but with the blade extended, the opposite side being a mirror image thereof;
FIG. 12 is a top plan view of the cutter head but with the blade extended;
FIG. 13 is a right-end view like FIG. 9 but with the blade extended; and,
FIG. 14 is a left-end view like FIG. 10 but with the blade extended.
The broken lines in the drawings illustrate portions of the sack opener which form no part of the claimed design.