Reclosable bag with expansion gusset

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 33/24 (2006.01) B31B 19/90 (2006.01) B31B 37/00 (2006.01) B65B 9/08 (2006.01) B65B 9/20 (2006.01) B65B 61/18 (2006.01) B65D 30/20 (2006.01) B65D 33/18 (2006.01) B65D 75/00 (2006.01)

Patent

CA 2441075

A reclosable bag (10) for packaging bulk items for retail sale has a body having opposing broad face panels (12, 16) defining a volume therebetween for holding a quantity of contents, an end of the body forming an expandable gusset (20, 62, 82) between the broad face panels, and a reclosable bag closure (30, 150) between the expandable gusset and corresponding edge region of one of the broad face panels. When the closure is opened a bag opening (42) is formed between the expandable gusset and said one of the broad face panels of the bag, to access the bag contents. In one example, the bag has upper and lower expandable gussets (18, 20), while in another the bag has expandable side gussets (62). The closure is readily closed without precise alignment and despite the adjacent gusset.

L'invention se rapporte à un sac refermable (10) conçu pour emballer des produits en vrac pour une vente au détail et dont le corps comporte de larges panneaux-façades (12, 16) opposés définissant un volume permettant de contenir une quantité de produits, une extrémité du corps formant un soufflet extensible (20, 62, 82) entre les larges panneaux-façades, ainsi qu'une fermeture de sac refermable (30, 150) se situant entre le soufflet extensible et une zone de bordure correspondante d'un des larges panneaux-façades. L'ouverture de la fermeture du sac crée une ouverture (42) de sac entre le soufflet extensible et ledit large panneau-façade du sac permettant l'accès au contenu du sac. Dans un mode de réalisation de la présente invention, le sac est pourvu de soufflets extensibles (18, 20) inférieur et supérieur alors que dans un autre mode de réalisation, le sac est muni de soufflets extensibles (62) latéraux. La fermeture se ferme aisément sans alignement précis et malgré les soufflets adjacents.

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