Spout for flat-bottomed bag has flange at base which is fastened to bag, internally threaded pouring tube being attached to this which has second flange at top which cooperates with rib on snap-fitting cap

摘要

The spout for a flat-bottomed bag has a flange (1) at the base which is fastened to the bag. A pouring tube (2) is attached to this and has an internal thread (4). A second flange (5) at the top of the tube cooperates with a rib (6) on a snap-fitting cap (3) a membrane (10) and locking ring (9) may be inserted into the base of the tube.