Collapsible bag for dispensing liquids and method

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 33/16 (2006.01) B65D 30/08 (2006.01)

Patent

CA 2646248

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 wall. The first wall and second wall are connected together to define a fluid chamber therebetween. The first wall and the second wall each have an inner surface facing the fluid chamber and an opposed outer surface. The spout is attached to one of the first and second walls, and has an opening therethrough having an axis substantially perpendicular to the one of the first and second walls to which it is attached. The surface variation is molded into at least a portion of the first 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 à la première paroi. La première paroi et la seconde paroi sont assemblées de façon à définir une chambre de fluide entre elles. La première et la seconde paroi possèdent chacune une surface interne faisant face à la chambre de fluide et une surface externe opposée. 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 paroi à laquelle elle est fixée. La variation de surface est moulée dans au moins une partie de la première paroi. La variation de surface limite le contact entre les surfaces internes de la première et de la seconde paroi de manière à définir entre elles un 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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