FIG. 1 is a front perspective view of an acoustic coupler according to a first embodiment;
FIG. 2 is a rear perspective view of the acoustic coupler of FIG. 1;
FIG. 3 is a side view of the acoustic coupler of FIG. 1; and
FIG. 4 is a rear view of the acoustic coupler of FIG. 1;
FIG. 5 is a side view of the acoustic coupler of FIG. 1, rotated ninety degrees about its axis relative to the side view of FIG. 3;
FIG. 6 is a front view of the acoustic coupler of FIG. 1;
FIG. 7 is a side view of the acoustic coupler of FIG. 1, rotated 90 degrees counterclockwise as viewed in FIG. 3;
FIG. 8 is a front perspective view of an acoustic coupler according to a second embodiment;
FIG. 9 is a rear perspective view of the acoustic coupler of FIG. 8;
FIG. 10 is a side view of the acoustic coupler of FIG. 8; and,
FIG. 11 is a rear view of the acoustic coupler of FIG. 8;
FIG. 12 is a side view of the acoustic coupler of FIG. 8, rotated ninety degrees about its axis relative to the view of FIG. 10;
FIG. 13 is a front view of the acoustic coupler of FIG. 8; and,
FIG. 14 is a side view of the acoustic coupler of FIG. 8, rotated 90 degrees counterclockwise as viewed in FIG. 10.