FIG. 1 is front view of a first embodiment of a seal, the rear view being a mirror image of the front view;
FIG. 2 is a top plan view of the seal of FIG. 1;
FIG. 3 is a bottom plan view of the seal of FIG. 1;
FIG. 4 is a cross-sectional view of the seal of FIG. 1 taken along line 4-4;
FIG. 5 is an enlarged detail perspective view of the outer circumferential surface of the seal of FIG. 1;
FIG. 6 is front view of a second embodiment of the seal, the rear view being a mirror image of the front view;
FIG. 7 is a top plan view of the seal of FIG. 6;
FIG. 8 is a bottom plan view of the seal of FIG. 6;
FIG. 9 is a cross-sectional view of the seal of FIG. 6 taken along line 9-9;
FIG. 10 is an enlarged detail perspective view of the outer circumferential surface of the seal of FIG. 6;
FIG. 11 is front view of a third embodiment of the seal, the rear view being a mirror image of the front view;
FIG. 12 is a top plan view of the seal of FIG. 11;
FIG. 13 is a bottom plan view of the seal of FIG. 11;
FIG. 14 is a cross-sectional view of the seal of FIG. 11 taken along line 14-14;
FIG. 15 is an enlarged detail perspective view of the outer circumferential surface of the seal of FIG. 11;
FIG. 16 is front view of a fourth embodiment of the seal, the rear view being a mirror image of the front view;
FIG. 17 is a top plan view of the seal of FIG. 16;
FIG. 18 is a bottom plan view of the seal of FIG. 16;
FIG. 19 is a cross-sectional view of the seal of FIG. 16 taken along line 19-19;
FIG. 20 is an enlarged detail perspective view of the outer circumferential surface of the seal of FIG. 16;
FIG. 21 is front view of a fifth embodiment of the seal, the rear view being a mirror image of the front view;
FIG. 22 is a top plan view of the seal of FIG. 21;
FIG. 23 is a bottom plan view of the seal of FIG. 21;
FIG. 24 is a cross-sectional view of the seal of FIG. 21 taken along line 24-24; and,
FIG. 25 is an enlarged detail perspective view of the outer circumferential surface of the seal of FIG. 21.
The dashed broken lines in the drawings represent portions of the seal that form no part of the claim. The dash-dot-dash broken lines define surface boundaries of the claim, and indicate cutoff boundaries for enlarged detail portion views that form no part of the claim.