发明名称 Convenience-feature non-circular end closure with interrupted panel profiling
摘要 Forming a convenience-feature, sheet metal end closure structure (180, 216) for a container having a non-cylindrical side wall (250). Scoring and back-up tooling enable peripheral scoring (102, 130, 142) on either surface of such end closure to define a separable panel (160, 218) with its peripheral scoreline located contiguous to the end closure chuck wall (132, 144); which interfits within the open end of the container body. Separation of such endwall panel leaves substantially no obstruction to removal of solid-pack contents. The separable panel is provided with means to prevent tear-out of a segment of the endwall panel and retain an integral opener (148) with the panel. Preselected placement of such elongated integral opener as designated on various non-circular configuration endwall panels, along with novel shaping of tooling chuck (270), enables desired chuck wall support for chime seam assembly of the end closure a container body as well as desired placement of the opener working end contiguous to such chuck wall and peripheral scoreline.
申请公布号 US5252019(A) 申请公布日期 1993.10.12
申请号 US19920928418 申请日期 1992.08.12
申请人 WEIRTON STEEL CORPORATION 发明人 SAUNDERS, WILLIAM T.;HANLEY, KEVIN
分类号 B21D51/38;(IPC1-7):B21D22/06;B21D51/44 主分类号 B21D51/38
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