公开(公告)号：US07500376B2

公开(公告)日：2009-03-10

申请号：US11192978

申请日：2005-07-29

申请人： Jess N. Bathurst ,  James D. Traphagen

发明人： Jess N. Bathurst ,  James D. Traphagen

IPC分类号： B21D22/00

CPC分类号： B21D22/24 ,  B21D51/38

摘要： The present invention describes an apparatus and forming process to manufacture container end closures with improved internal buckle strength. The present invention provides greater material and dimensional control during the forming process by utilizing a pressure sleeve to provide support to at least a portion of an end closure chuck wall and seaming panel radius while placing an end closure countersink in compression during the forming process.

摘要翻译： 本发明描述了一种具有改进的内部扣环强度来制造容器端盖的装置和成形方法。 本发明在成形过程中通过利用压力套筒在端盖闭合卡盘壁和接缝面板半径的至少一部分提供支撑，同时在成形过程中将端部封闭式埋头孔置于压缩状态下，提供更大的材料和尺寸控制。