发明名称 |
Apparatus for transverse sealing layers of elongated thermoplastic material |
摘要 |
An apparatus for transversely sealing layers of thermoplastic material wherein platen-equipped upper and lower cross bar conveyors are provided for the sealing, there is provided means for jogging the thermoplastic web material incident to heat-up of the platens to prevent scorching of the web and means for stretching the layered web during sealing to overcome the tendency for differential longitudinal shrinkage.
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申请公布号 |
US4585508(A) |
申请公布日期 |
1986.04.29 |
申请号 |
US19840665054 |
申请日期 |
1984.10.26 |
申请人 |
PAPER CONVERTING MACHINE CO. |
发明人 |
EHLERS, DENNIS W. |
分类号 |
B65B51/10;B29C65/00;B29C65/18;B65B51/00;(IPC1-7):B30B5/06 |
主分类号 |
B65B51/10 |
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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