| 摘要 |
PCT No. PCT/GB92/00315 Sec. 371 Date Oct. 12, 1993 Sec. 102(e) Date Oct. 12, 1993 PCT Filed Feb. 21, 1992 PCT Pub. No. WO92/15495 PCT Pub. Date Sep. 17, 1992.A cap (20) is provided with a sealing pad (31) made of good barrier material for the contents of a bottle on which the cap is engaged. The pad has annular projections (33, 34) which sealingly engage with the inner wall (13) and the rim (15) respectively of a mouth of the bottle. The pad is retained in the cap by a retaining ring (30) projecting radially inwardly from the skirt (22) of the cap and this ring engages the outer wall (14) of the mouth to provide a third seal between the cap and the bottle. |
