发明名称 |
Method for closing and sealing plastic tubing using a hot die and a rotating cold die |
摘要 |
Container bags for intravenous solution of one-piece, blow-molded construction typically have a fill port or tube and at least an administration port in one end of the container bag. A method, an apparatus and an article of manufacture are provided where a fill port or tube on a polyolefin or other plastic container bag is sealed into a dome shape where the solid wall, dome-shaped material closing the port or tube effects the seal. The method provides for sealing the open end of a thermoplastic tube or port by using respectively hot and cold dies. Resistance of the tube or port to forming a seal at adjoining interfaces is overcome by rotating at least one of the dies. Disruption and mixing of the plastic at the interface or closure line is accomplished, forming a substantially homogenous mass which seals the port opening. |
申请公布号 |
US4521366(A) |
申请公布日期 |
1985.06.04 |
申请号 |
US19820392421 |
申请日期 |
1982.06.24 |
申请人 |
BAXTER TRAVENOL LABORATORIES, INC. |
发明人 |
MASON, JOE;ECKERT, HERMANN F. |
分类号 |
A61J1/05;A61J1/10;B29C35/02;B29C57/10;B29C65/06;(IPC1-7):B29C17/00 |
主分类号 |
A61J1/05 |
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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