Collapsible bag for dispensing liquids and method

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 35/00 (2006.01)

Patent

CA 2616961

A collapsible bag for dispensing liquids, including viscous liquids such as syrup and the like, comprising a first wall, a second wall, a spout, a surface variation associated with the first and second walls. The first wall and second wall are connected together to define a fluid chamber therebetween. The spout is attached to one of the first and second walls, and has an opening therethrough having an axis substantially perpendicular to one of the first and second walls. The surface variation is molded into at least a portion of the first wall and at least a corresponding portion of the second wall. The surface variation limits contact between the inner surfaces of the first wall and the second wall so as to define a minimum unstressed volume therebetween wherein at least a portion of the minimum unstressed volume is maintained substantially throughout evacuation of liquid therefrom by suction.

La présente invention a trait à un sac repliable pour la distribution de liquides, notamment des liquides visqueux tels que du sirop et analogues, comportant une première paroi, une seconde paroi, un bec verseur, une variation de surface associée aux première et seconde parois. La première paroi et la seconde paroi sont assemblées de façon à définir une enceinte à fluide entre elles. Le bec verseur est fixé à la première ou la seconde parois, et présente une ouverture traversante dont l'axe est sensiblement perpendiculaire à la première ou seconde parois. La variation de surface est moulée dans au moins une portion de la première paroi et au moins une partie correspondante de la seconde paroi. La variation de surface limite le contact entre les surfaces intérieures de la première paroi et de la seconde paroi de manière à définir entre elles au moins une partie du volume minimal sans contrainte dont au moins une partie est maintenue sensiblement pendant toute la durée d'évacuation du liquide de celui-ci par aspiration.

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