Drinks beaker has lid whose edge carries groove or thread which cooperates with ring or thread inside beaker and sealing rib inside beaker, both rib and lid having lateral openings which can be aligned by turning lid

摘要

The beaker has a lid whose edge carries a groove or thread. This cooperates with a ring (4) or thread inside the beaker. The beaker also has a rib (3) which seals the beaker. Both rib and lid have lateral openings which can be aligned by turning the lid using a handle.