초록 ▼

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 include

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.

대표청구항 ▼

[ What is claimed is:] [1.] A bag body formed from a rectangular sheet of film material, said bag body having:a top end, a bottom end, a front wall, and a back wall, said front wall being joined to said back wall by upper and lower seams respectively provided at said top and bottom ends; anda reclos

[ What is claimed is:] [1.] A bag body formed from a rectangular sheet of film material, said bag body having:a top end, a bottom end, a front wall, and a back wall, said front wall being joined to said back wall by upper and lower seams respectively provided at said top and bottom ends; anda reclosable fastener assembly joined to said front wall and comprising first and second interlocking profile strips respectively extending along the length of the fastener assembly, said profile strips being configured for releasable interlocking engagement with each other by the provision of at least one protuberance on one of said profile strips, and at least one groove defined by the other of said profile strips for respectively releasably receiving said protuberance;said first profile strip including a first body flange portion joined at a first seal to an inside surface of said front wall of said bag body, said second profile strip joined by a second seal to the inside surface of said front wall of said bag body, a gas bypass opening provided around said interlocking engagement of said profile strips, said front wall including an openable joint between said first and second seals;said front wall having a vent opening therethrough; anda vent passage formed by said first body flange portion and said vent opening through said front wall, said vent passage being openable under influence of internal bag pressure to expel gas from inside said bag body from said gas bypass opening to outside said bag through said vent opening.