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    • 8. 发明授权
    • Zippered closure for thermoformed package
    • 用于热成型包装的拉链封闭
    • US5026563A
    • 1991-06-25
    • US327619
    • 1989-03-23
    • Donald L. Van ErdenDaniel P. McDonald
    • Donald L. Van ErdenDaniel P. McDonald
    • B65D33/00B65D33/25B65D33/34
    • B65D33/2533B65D33/2525
    • A plastic film bag for foodstuffs or the like having opposed film bag walls joined at their edges and forming a mouth between the walls at one side, reclosable fastener strips between the walls at the bag mouth having facing releasably interlocking profiles thereon with a base for each of the strips, each base web having an outer portion and an inner portion which is adjacent the contents of the bag, one inner portion bonded to the wall of the bag and the other inner portion substantially unattached, the inner portions of the webs being continuous with a perforate tear line therethrough, a sealing strip over the tear line, the outer edges of the film at the mouth bonded to each other above the fastener strips so that the outer edge can be cut leaving pull flanges with the inner portions of the base webs sealing the interior of the bag until the tear lines are torn.
    • 一种用于食品或类似物的塑料膜袋,其具有在其边缘连接并且在一侧的壁之间形成嘴部的相对的膜袋壁,在袋口处的壁之间的可再闭合的紧固条具有面向可释放地互锁的轮廓,其上具有用于每个 每个基网具有外部部分和与袋的内容物相邻的内部部分,一个内部部分粘合到袋的壁上,另一个内部部分基本上未连接,该腹板的内部部分是连续的 具有穿过其的穿孔撕裂线,在撕裂线上方的密封条,口部处的膜的外边缘在紧固件带上彼此接合,使得可以切割外边缘,留下拉缘与基部的内部 网密封袋的内部,直到撕裂线撕裂。