B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 30/10 (2006.01) B65D 30/08 (2006.01) B65D 33/36 (2006.01) B65D 75/58 (2006.01)
Patent
CA 2391019
A collapsible bag (100) for dispensing liquids which includes at least one sheet (104, 108) sealed to define an enclosure and a fitment (124) (spout) attached to the enclosure and out through which liquid in the enclosure is dispensed. An interior surface of the one or more sheets has integral texture to assist in withdrawal of the liquid from the enclosure when collapsed. The texture can be provided by sheet surfaces that are mechanically or ultrasonically embossed or are bubble-cushioned (204) or which have sealed pleats (224) or accordion folds. The bottom surface (246) of a lower flange (244) of the fitment may have concentric ridges (298) (or spirals) (256) and/or radial grooves (278). Also disclosed are methods of making the bag from one, two, three or four sheets.
L'invention porte sur un sac repliable pour liquides comprenant au moins une feuille soudée délimitant un récipient, et un accessoire (bec verseur) fixé au récipient et servant à verser le liquide remplissant le récipient. La surface intérieure de la ou des feuilles présente une texture intégrée favorisant l'évacuation du liquide lorsque le récipient est replié. La texture peut consister en surfaces de la ou des feuilles bosselées mécaniquement ou par des ultrasons ou à bulles d'air, ou plissés ou en accordéon. La surface inférieure de l'accessoire peut comporter des bourrelets concentriques (ou en spirale) et/ou des rainures radiales. L'invention porte également sur les procédés de fabrication du sac à partir d'une, deux, trois ou quatre feuilles.
Albiani Richard L.
Carroll Richard
Lu Nancy
Micnerski Kenneth
Savage Chester
Scholle Corporation
Smart & Biggar
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