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。