| 摘要 |
<p>A can (10) presents an opening (A) provided in an upper wall (1) and defining a retaining seat (13). The device comprises: a sealing seat (20) locked in the retaining seat (13) and provided with an inner locking thread (24a) and with a stop means (25); a pouring spout (30) having an upper end (33) externally provided with a closing thread (33a) and with a retaining means (34) and being displaced between an inoperative position, with the retaining means (34) seated on the stop means (25), and an operative position, with the upper end (33) projecting outwardly from the can (10), and with the lower end (32) locked in the stop means (25); and a lid (40) having an inner cylindrical surface (43), provided with an inner thread (43a), to be engaged with the closing thread (33a) of the pouring spout (30); and an outer cylindrical surface (44) provided with an outer thread (44a), to be engaged with the locking thread (24a) of the sealing seat (20).</p> |
