| 摘要 |
A closure system for a flask or a bottle made of glass and comprising a body (31) and a cylindrical tubular neck (32), the system comprising: a stopper (33) for fitting over the end of the neck, the stopper having a cylindrical tubular wall (35) and means (36, 37) for co-operating with the flask neck for sealing the flask; mutually co-operative guide means (39, 41, 42) on the neck and on the stopper for defining a combined motion of rotation and axial translation of the stopper relative to the neck; and stop means (55, 59) for limiting said motion in a predetermined closure position in which the stopper is at a desired orientation relative to the flask and in which sealing is ensured. |
