A conduit coupler (10) for connecting adjacent sections (12,14) of a conduit system having a plurality of inner ducts (16) contained in an outer cylindrical conduit (18). The conduit coupler (10) is a one-piece cylindrical body of resilient rubberlike material with a plurality of spaced sets of circumferentially...http://www.google.fr/patents/US4865354?utm_source=gb-gplus-shareBrevet US4865354 - Conduit coupler
