Rigid pipe coupling

FIG. 1 is an isometric view of our design for a rigid pipe coupling;

FIG. 2 is a front view of the design for a rigid pipe coupling shown in FIG. 1 , the rear view being identical;

FIG. 3 is a top view of the design for a rigid pipe coupling shown in FIG. 1 ;

FIG. 4 is a bottom view of the design for a rigid pipe coupling shown in FIG. 1 ; and,

FIG. 5 is a left side view of the design for a rigid pipe coupling shown in FIG. 1 , the right side view being identical.

The broken lines in FIGS. 1–5 are for illustrative purposes only and form no part of the claimed design.