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.
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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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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