发明名称 Form fill and seal package with one-way vent
摘要 A package in the form of a reclosable bag includes a bag body including front and back walls, and a profile strip fastener assembly sealingly mounted on the inside surface of the front wall, and a one-way vent incorporated into the bag sealing arrangement. The profile strip fastener assembly includes a pair of releasably interlocking profile strips, with a secondary, peelable seal provided between the profile strips apart from their mechanically interlocked portions. The bag body preferably includes a frangible joint substantially aligned with the fastener assembly for gaining access to the assembly, with the frangible joint desirably providing tamper-evidence of opening of the package. The profile strips are sealed to the front wall of the bag body with a continuous oval shaped seal around the frangible joint, except for a gap which in part defines the vent. Gas pressure caused by evolving gas within the bag is relieved through the vent, while a portion of one of the profile strips or a portion of the bag wall, unsecured across the gap closes the gap to prevent air from passing into the bag.
申请公布号 US5829884(A) 申请公布日期 1998.11.03
申请号 US19970879262 申请日期 1997.06.19
申请人 INNOFLEX INCORPORATED 发明人 YEAGER, JAMES W.
分类号 B65D33/01;B65D33/25;(IPC1-7):B65D33/16 主分类号 B65D33/01
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