Swing clip bottle stopper is pressure injection molded from hard and resilient plastic leaving no recesses for dirt and germs and reducing damage probability in comparison with conventional ceramic type

摘要

Stopper comprises two different plastic components, injection molded in two stages as a unitary item. The form resembles the familiar ceramic type, however, in the new design the resilient seal plastic is injection molded-on, flush with the stopper body (1) contours. The bonded interface between the two different plastics, has a cylindrical-conical-cylindrical taper (5, 6, 17).