A new articulated mouthpiece respirator tube (Machine-translation by Google Translate, not legally binding)

摘要

A new articulated mouthpiece breather tube, which is essentially characterized by the arrangement of the nozzle rotatable with respect to the tube and therefore perfectly adaptable to the mouth of the user, said joint being made to comprise in the intermediate section between the body of the mouthpiece and the normal tube, the separation into two independent parts, which for their conjunction, use the inclusion of a link piece, which adapts and joins the two terminals. (Machine-translation by Google Translate, not legally binding)