发明申请
US20190111591A1 METHOD AND DEVICE FOR MAINTAINING AN INNER DIAMETER OF A PLASTIC CONTAINER
审中-公开
基本信息:
- 专利标题： METHOD AND DEVICE FOR MAINTAINING AN INNER DIAMETER OF A PLASTIC CONTAINER
- 申请号：US15786241 申请日：2017-10-17
- 公开(公告)号：US20190111591A1 公开(公告)日：2019-04-18
- 发明人： Scott E. Bysick , John E. Denner , Justin A. Howell
- 申请人： GRAHAM PACKAGING COMPANY, L.P.
- 申请人地址： US PA Lancaster
- 专利权人： GRAHAM PACKAGING COMPANY, L.P.
- 当前专利权人： GRAHAM PACKAGING COMPANY, L.P.
- 当前专利权人地址： US PA Lancaster
- 主分类号： B29C33/76
- IPC分类号： B29C33/76 ; B29C49/06 ; B29C49/20 ; B29C49/48 ; B29C33/04 ; B65D83/14
摘要：
Methods and devices for manufacturing plastic preforms and plastic containers are provided. Methods of manufacturing a plastic preform having an inner undercut include forming a preform of plastic in amorphous state and inserting a plug within the mouth of the preform. The plug includes an upper plug member and an expandable element, the expandable element having an initial outer diameter in plan view with the plug in an initial condition and a deployed outer diameter in plan view with the plug in a deployed condition. Methods further include deploying the plug to the deployed condition with the expandable element positioned to engage a side wall proximate the inner undercut and crystallizing the plastic of the preform along the finish portion.
IPC结构图谱:
| B | 作业；运输 |
| --B29 | 塑料的加工；一般处于塑性状态物质的加工 |
| ----B29C | 塑料的成型或连接；塑性状态物质的一般成型；已成型产品的后处理，如修整 |
| ------B29C33/00 | 模型或型芯；其零件或所用的附件 |
| --------B29C33/76 | .型芯 |