发明名称 Forming of end closures
摘要 A method and apparatus are disclosed and can be used to fabricate a complete container end closure including an inwardly tipped cover hook located along the peripheral extremity. The apparatus and its use in performing the method are unique in that one tool does all the forming to produce the complete end closure. More particularly, the cover hook is preformed by a first tool operation and then finally formed by a subsequent step wherein the preformed end is reformed to a final configuration in a step which is completely independent of the first tool.
申请公布号 US4372720(A) 申请公布日期 1983.02.08
申请号 US19800183977 申请日期 1980.09.04
申请人 AMERICAN CAN COMPANY 发明人 HERDZINA, FRANK J.;KOSSMANN, HANS;LEMKE, HAROLD C.
分类号 B21D19/08;B21D19/12;B21D51/44;(IPC1-7):B21D51/44 主分类号 B21D19/08
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