Abstract

A solvent-bonded joint between plastic members, and a method of making the same, particularly useful where such members are intended to convey flowable materials such as sterile medical solutions. The joint includes a pair of members joined at a zone of interference, a tapered crevice between the members, a solvent bond in the tapered crevice, and a series of spacers extending along the entrance to the crevice. The spacers or nubs are provided by one or both of the members and maintain the walls at the entrance of the crevice in uniformally-spaced and stressed condition to facilitate introduction of solvent and to insure proper bonding of the parts even where such parts are formed of flexible plastic material. The zone of interference serves as a barrier against any flowable material entering the tapered crevice in the opposite direction prior to formation of the solvent bond and further serves as a barrier against the escape of solvent through the crevice or the contamination by solvent of any material beyond or below the crevice.