发明名称 Machine for erecting hexagonal drum
摘要 Method and apparatus for erecting a polygonal carton from a collapsed envelope (blank) are disclosed. The carton is preferably a two-ply hexagonal carton having a bottom that forms automatically as the oppositely disposed sidewall-forming panels of the envelope are separated. An improved envelope for use with the apparatus is also disclosed.
申请公布号 US4457744(A) 申请公布日期 1984.07.03
申请号 US19800210851 申请日期 1980.11.26
申请人 INTERNATIONAL PAPER COMPANY 发明人 SANFORD, ROBERT J.
分类号 B31B5/76;(IPC1-7):B31B5/26;B31B1/52 主分类号 B31B5/76
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