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

    公开(公告)号：US3687356A

    公开(公告)日：1972-08-29

    申请号：US3687356D

    申请日：1965-06-28

    Applicant: ST REGIS PAPER CO

    Inventor： GOODRICH JOHN J ,  WAXLAX CHESTER E

    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 a stepped rear portion adapted to overlap said front portion within the overlap area of said front and rear surfaces at said end of the tube when said bag is in its assembled condition, and with the bag plies extending progressively and successively one beyond another at each surface portion at said bag end, and a bonding agent in a dormant state being applied on each surface portion at said bag end, and said bonding agent being reactivatable to close said bag subsequent to a later bag filling operation.

    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地折皱，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 当所述袋处于组装状态时，在所述管的所述端部处的所述前表面和后表面，并且所述袋层在所述袋端处的每个表面部分处逐渐且连续地延伸超过另一个，并且处于休眠状态的粘合剂为 施加在所述袋端部的每个表面部分上，并且所述粘合剂可再活化以在随后的袋状物f之后关闭所述袋 lling操作。

    Gusseted pinch bottom breakaway pouch bag
    3.
    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.

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