Gasket for pipe coupling

FIG. 1 is a perspective view of a gasket for pipe coupling;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a cross section view taken from cut line 8 - 8 in FIG. 1 ; and,

FIG. 9 is a cross section view taken from cut line 9 - 9 in FIG. 2 .