Ferrule, coupling and coupling process

摘要

A deformable ferrule for use in coupling hose which has a sidewall portion that decreases in thickness going longitudinally of the ferrule from a fitting end to a hose end. A method of deforming an exterior frustro-conical surface portion of the ferrule to a generally cylindrical shape while simultaneously forming an inside surface portion of the ferrule to a generally frustro-conical shape.