发明名称 Opening means for a packaging means of flexible material
摘要 An approximately U-shaped slot is provided in the side wall adjacent the edge line, to form a pouring edge which projects from the edge line and which can be pivoted forwardly into the plane of the upper end wall, wherein the pouring opening and the slot are provided with a plastics sealing means from the inside of the package, the free ends of the U-shaped slot are arranged to extend by a portion into the upper end wall, and the outer cover strip is weld-free almost over the entire pouring edge region.
申请公布号 US4223789(A) 申请公布日期 1980.09.23
申请号 US19780972049 申请日期 1978.12.21
申请人 TETRA PACK DEVELOPPEMENT S.A. 发明人 REIL, WILHELM
分类号 B65D5/74;B65D5/06;B65D5/54;B65D5/70;B65D85/72;(IPC1-7):B65D5/72 主分类号 B65D5/74
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