| 摘要 |
<p>A full aperture easy open end (5) having a central panel (20), a circumferential score (10) and a tab (15) riveted to the central panel so that its nose (35) is positioned above the score. When the end is first opened, the socre is broken along an arc (45) having a specific chord length (40). The end is of metal having a grain which is aligned to a tangent at one end of the chord (40). In a preferred embodiment, this 'grain tangent' is also at minimum score residual.</p> |
