| 发明名称 |
Stretch wrapping film cut-off system |
| 摘要 |
In a stretch wrapping system, the film is punctured about half way across its width to form a small hole which is expanded in the prestretch station and the film finally broken by abruptly increasing film tension at the end of a wrapping operation.
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| 申请公布号 |
US5765344(A) |
申请公布日期 |
1998.06.16 |
| 申请号 |
US19970805944 |
申请日期 |
1997.02.21 |
| 申请人 |
WULFTEC INTERNATIONAL INC. |
发明人 |
MANDEVILLE, STEPHEN MARCEL;DITCHBURN, GLEN JOSEPH;VEZINA, CHRISTIAN S. |
| 分类号 |
B65B11/00;B65B11/04;B65B53/00;B65B61/02;B65B61/12;(IPC1-7):B65B53/00 |
主分类号 |
B65B11/00 |
| 代理机构 |
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