发明名称 Apparatus for seaming a lid to a container pan
摘要 A method and apparatus for seaming a lid to a container pan are disclosed wherein a peripheral curled marginal edge on the lid and an outwardly directed peripheral rim on the pan are formed into a double seam by seam forming die means operative to substantially simultaneously form the seam about the full periphery of the container rather than a gradual circumferential forming of the seam as in conventional roll seaming processes.
申请公布号 US4136627(A) 申请公布日期 1979.01.30
申请号 US19770863520 申请日期 1977.12.22
申请人 KRAFT, INC. 发明人 MILLER, ROLAND E.;SCALETTA, JOSEPH A.;VALEK, JOHN
分类号 B65B7/28;(IPC1-7):B21D19/00 主分类号 B65B7/28
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