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1. 发明授权

US5250018A Method of making rectangular paperboard package 失效
标题翻译：制作矩形纸板包装的方法
公开(公告)号：US5250018A
公开(公告)日：1993-10-05
申请号：US978037
申请日：1992-11-18
申请人： Yun H. Chung , Dennis E. Chung
发明人： Yun H. Chung , Dennis E. Chung
IPC分类号： B65D5/06 , B65D5/54 , B31B3/16 , B31B3/25 , B31B3/46 , B31B3/64
CPC分类号： B65D5/548 , B65D5/065
摘要： A liquid tight rectangular paperboard container (10) is provided with a separate opening tab (17) secured to the top panel (15) thereof which enables the package to be opened to provide a fully open top. In particular, an elongate plastic window (18c) is formed along the front fold line (15a) connecting the top and front panels (15 and 11) of the package, and has ends (18d, 18e) connected to spaced apart arcuate shaped perforated lines (18a, 18b) extending to the rear corners of the top panel. In the construction of the package, the opening tab (17) is first ultrasonically welded to the outside surface of the package blank, and then the window section (18c) is pressed against and welded to the inside surface of the tab. A slit (40) which is formed in the window enables any air trapped between the window and the tab to escape during the welding operation. The package also includes a unique side sealing flap structure, while the particular paper supply roll from which the package is constructed has a unique structure. Also, a unique method of forming the package is disclosed.
摘要翻译：液密的矩形纸板容器（10）设置有固定到其顶板（15）的单独的开口突片（17），其使得包装件能够打开以提供完全敞开的顶部。特别地，沿着连接包装的顶板和前面板（15和11）的前折叠线（15a）形成细长的塑料窗（18c），并且具有连接到间隔开的弧形穿孔的端部（18d，18e）线（18a，18b）延伸到顶板的后角。在包装的构造中，首先将开口接头（17）超声波焊接到包装坯料的外表面，然后将窗部（18c）压靠并焊接到突片的内表面。形成在窗口中的狭缝（40）使得在焊接操作期间能够在窗口和突片之间捕获的任何空气逸出。该包装还包括独特的侧密封翼片结构，而构造包装的特定供纸辊具有独特的结构。另外，公开了形成封装的独特方法。

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