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    Gusseted pinch bottom breakaway pouch bag
    1.
    发明授权
    Gusseted pinch bottom breakaway pouch bag 失效

    公开(公告)号：US3910488A

    公开(公告)日：1975-10-07

    申请号：US46049774

    申请日：1974-04-12

    Applicant: ST REGIS PAPER CO

    Inventor： GOODRICH JOHN J

    IPC: B65D30/08 ,  B65D75/68 ,  B65D33/02

    CPC classification number: B65D31/02 ,  B65D75/68

    Abstract: A bag of tubular form open at one end and closed at the other end, comprising a plurality of contiguous plies of paper bonded together adjacent each of said ends, and an innermost ply of heat sealable plastic material lightly bonded adjacent said bag ends to the contiguous paper ply for manual detachment therefrom, said bag being longitudinally and reversely creased along diametrically opposed portions to provide a pair of oppositely disposed gussets interposed between front and rear wall portions, at least some of the inner plies being stepped progressively upward with respect to the outer ply in the front wall portion at the open bag end, at least the outermost ply being stepped upwardly with respect to the innermost ply in the rear wall portion at the open bag end to provide an exposed overlap rear wall portion with respect to the innermost ply of said front wall portion, at least portions of said gussets terminating at said open bag end within said overlap to provide exposed portions thereof, said overlap rear wall and exposed gusset portions being coated with an adhesive at said open bag end, the bag construction at said closed end being the reverse of that at the open end said plastic ply being heat sealed to closure adjacent said closed bag end, the bag closure at said end being otherwise completed by coating the exposed overlapping rear wall portion and exposed gusset portions with an adhesive and folding over with said sealed end of said plastic ply and sealed to closure against the opposite wall portion, said bonding together of said paper plies at said end thereby imparting to said closure the combined strength of all such plies, the open end of said bag being adapted for heat sealing of said plastic ply and closure similarly to that of said closed end and said bag when so closed at both ends being sift and leak proof and resistant to insect penetration, and being adapted for opening of said paper plies and removal of said plastic ply intact.

    Gusseted type bags
    2.
    发明授权
    Gusseted type bags 失效
    GUSSETED型包包

    公开(公告)号：US3776451A

    公开(公告)日：1973-12-04

    申请号：US3776451D

    申请日：1972-05-26

    Applicant: ST REGIS PAPER CO

    Inventor： WAXLAX C ,  GOODRICH J

    IPC: B65D30/08 ,  B65D30/20 ,  B65D31/02

    CPC classification number: B65D31/10 ,  B65D31/02

    Abstract: A bag of tubular form comprising a plurality of contiguous plies of flexible sheet material, said bag having a front surface and an oppositely disposed rear surface adapted to overlap said front surface at one end of said tube when said bag is in its assembled condition, said bag being longitudinally and reversely creased along diametrically opposed portions to provide a pair of oppositely disposed gussets interposed between said front and rear surfaces, each of said gussets having a front portion and stepped rear portion adapted to overlap said front portion within the overlapped area of said front and rear surfaces at said end of the tube when said bag is in its assembled condition, a bonding agent in a dormant state substantially covering said exposed surfaces at said end of the tube when said bag is in its assembled condition, and said bonding agent being reactivatable to close said bag end, the opposite end of said tube being the reverse of said one end and being folded over and adhered to a surface of said tube by means of said bonding agent, the innermost ply being preferably of a heat sealable material.

    Abstract translation: 一种管状形式，包括多个相邻的柔性片材层，所述袋具有前表面和相对设置的后表面，当所述袋处于其组装状态时，该后表面适于在所述管的一端与所述管的一端重叠， 袋沿着直径相对的部分纵向和反向折皱，以提供插入在所述前表面和后表面之间的一对相对设置的角撑板，每个所述角撑板具有前部和阶梯状后部，其适于在所述前部和后表面的重叠区域内与所述前部重叠 当所述袋处于其组装状态时，所述管的所述端部处的前表面和后表面处于休眠状态的粘合剂，当所述袋处于其组装状态时，基本上覆盖在所述管的所述端部处的所述暴露表面的粘合剂， 可再活动以关闭所述袋端，所述管的相对端与所述一端相反并且被折叠 通过所述粘合剂粘附到所述管的表面，最内层优选为可热封材料。

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