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    • 72. 发明申请
    • PLASTIC CONTAINER FOR CARBONATED BEVERAGES
    • 用于碳酸饮料的塑料容器
    • WO1998028193A1
    • 1998-07-02
    • PCT/US1997023442
    • 1997-12-17
    • BALL CORPORATIONDAVIS, Craig, P.FUTRAL, Daniel, M.HENDERSON, John, P.LYNN, Stephen, R.
    • BALL CORPORATION
    • B65D01/42
    • B65D1/0284
    • A plastic container comprises a lower base forming portion that includes a plurality of circumferentially spaced downwardly convex segments (126) and a plurality of intervening, circumferentially spaced, totally convex, hollow foot forming portions (121) that extend radially from the central bottom portion (120) and downwardly from the downwardly convex segments to form a clearance (124) for the central bottom portion. The downwardly convex segments have smoothly curved cross sections, in radially extending planes through their central regions and coplanar with the container's longitudinal axis (120a). The clearance forming portion (123) of each foot forming portion includes a compound curved offset formed with opposing radii of curvature lying in a range of about 15 % to over about 30 % of foot contact diameter, the compound curved offset curving downwardly and outwardly about a center of curvature (131) below the bottom forming portion before curving about a center of curvature (130) above the bottom forming portion.
    • 塑料容器包括下部底部形成部分,该下部基部形成部分包括多个周向间隔开的向下凸出的部分(126)和从中心底部部分径向延伸的多个中间的,周向间隔开的全凸的中空的脚部形成部分(121) 120)并且从所述向下凸出的部分向下方形成用于所述中央底部部分的间隙(124)。 向下凸的段具有平滑弯曲的横截面,在径向延伸的平面中穿过其中心区域并与容器的纵向轴线(120a)共面。 每个足部形成部分的间隙形成部分(123)包括形成为具有相对的曲率半径的复合弯曲偏移,该曲率偏移在足部接触直径的约15%至超过约30%的范围内,所述复合曲线偏移向下和向外弯曲 在底部形成部分之上绕曲率中心(130)弯曲之前,在底部形成部分下方的曲率中心(131)。