Freestanding pouch for holding a fluid, pasty or noncohesive...

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 5/02 (2006.01) B31B 3/00 (2006.01) B65D 30/00 (2006.01) B65D 30/16 (2006.01) B65D 75/00 (2006.01)

Patent

CA 2072362

Pouch of the type obtained from a single long, flat blank (1) with two long parallel edges (5, 5'), the said blank being folded onto itself to form the two sides (7, 7') of the pouch which are connected to each other via a transverse bottom formed by the median portion of the blank, the two sides of the pouch being attached together edge-to-edge along their two long edges and the short edge (2) opposite the bottom, the pouch being characterized by the fact that the bottom has two triangular facets that are folded towards the inside volume of the pouch, the peak of the triangle (14c, 14d) pointing outward and reaching the corresponding long edge (5, 5') of the pouch; each long edge of the pouch, formed from the marginal combination of the two sides (7, 7.) comprises in the area between the said peak of the triangle and the base of the pouch four thicknesses or layers (5a, 31a, 31b, 5c) from the initial blank that are laminated together; the two interior layers (31a, 31b) that are laminated together are offset slightly towards the interior, thus leaving a marginal area where the two outer layers (5a, 5c) come into contact with each other and are laminated together beyond the terminal edge of the two interior layers (31a, 31b), thus ensuring the tightness and homogeneity of the pouch.

Sachet du type obtenu à partir d'une découpe (1) plane unique longiforme et à deux longs bords (5, 5')parallèles, cette découpe étant repliée sur elle-même pour définir les deux faces (7, 7') du sachet se rejoignant par un fond transversal formé par la partie médiane de la découpe, les deux faces du sachet étant réunies bord à bord par leurs deux longs bords et le petit côté (2) opposé au fond, le sachet étant caractérisé en ce que le fond comporte deux facettes triangulaires (14a, 14b) opposées dos à dos depuis la zone centrale (4) dudit fond, les deux facettes triangulaires étant repliées vers le volume intérieur du sachet, le sommet du triangle (14c, 14d) étant orienté en remontant vers l'extérieur et rejoignant le long bord (5, 5') correspondant du sachet et chaque long bord du sachet, formé de la réunion marginale des deux faces (7, 7') comporte dans la zone située entre ledit sommet du triangle et la base du sachet quatre épaisseurs ou couches (5a, 31a, 31b, 5c) venues de la découpe initiale contrecollées entre elles et les deux couches intérieures (31a, 31b) contrecollées entre elles sont prévues légèrement en retrait vers l'intérieur laissant subsister une zone marginale venue des deux couches extérieures (5a, 5c) ainsi venant en contact l'une de l'autre et contrecollées entre elles au-delà du bord terminal des deux couches intérieures (31a, 31b) en assurant ainsi l'étanchéité et l'homogénéité du sachet.

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