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1. 发明授权

US4108324A Ribbed bottom structure for plastic container 失效
标题翻译：用于塑料容器的肋底结构
公开(公告)号：US4108324A
公开(公告)日：1978-08-22
申请号：US799635
申请日：1977-05-23
申请人： Suppayan M. Krishnakumar , Siegfried S. Roy , John F. E. Pocock , Salil K. Das , Gautam K. Mahajan
发明人： Suppayan M. Krishnakumar , Siegfried S. Roy , John F. E. Pocock , Salil K. Das , Gautam K. Mahajan
IPC分类号： B65D1/02
CPC分类号： B65D1/0276
摘要： A container formed of synthetic resinous material having a bottom structure the outer surface of which comprises a central concavity and a convex heel, the heel surrounding the concavity and merging therewith and with the container sidewall. A plurality of hollow convex ribs, distributed in a symmetrical array, interrupt the outer surface of the concavity and merge smoothly therewith, each rib extending longitudinally in the direction of the heel and downwardly from an inner portion of the concavity. The wall of the bottom structure generally decreases in thickness progressively from the innermost point of the concavity to the sidewall.
摘要翻译：由合成树脂材料形成的容器，其底部结构的外表面包括中央凹部和凸起的跟部，所述后部围绕所述凹部并与所述容器侧壁合并。以对称阵列分布的多个空心凸肋中断凹陷的外表面并与其平滑地合并，每个肋沿着后跟的方向纵向延伸并且从凹部的内部向下延伸。底部结构的壁通常从凹部的最内侧逐渐减小到侧壁。

2. 发明授权

US3935955A Container bottom structure 失效
标题翻译：集装箱底部结构
公开(公告)号：US3935955A
公开(公告)日：1976-02-03
申请号：US549623
申请日：1975-02-13
申请人： Salil K. Das
发明人： Salil K. Das
IPC分类号： B65D1/00 , B65D1/02 , B65D23/00
CPC分类号： B65D1/0284
摘要： An improved bottom structure for plastic bottles of the type suitable for containing carbonated beverages. The outer surface of the bottom structure is formed with a central concave dome portion and a number of radial foot portions extending axially outwardly. The radial profile of each foot portion is a curve which merges with the dome portion and with the side wall of the container and which comprises a plurality of tangential arcs in series. Also disclosed is an improved mold for forming such bottom structures.
摘要翻译：适用于容纳碳酸饮料的塑料瓶改良的底部结构。底部结构的外表面形成有中心凹入的圆顶部分和许多沿轴向向外延伸的径向脚部分。每个脚部的径向轮廓是与圆顶部分和容器的侧壁并合并且包括多个串联的切向弧的曲线。还公开了一种用于形成这种底部结构的改进的模具。

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