Delivery device and container provided with the same

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 47/18 (2006.01) A61J 1/05 (2006.01) B65D 47/20 (2006.01) B65D 51/16 (2006.01)

Patent

CA 2493365

A discharge member from which liquid filled in a flexible container is discharged by pressing the container and a container provided with the discharge member on a mouth portion of the container are disclosed. The discharge member comprises a discharge portion with a substantially cylinder- like or substantially bowl-like form provided with a discharge hole in the bottom; a valve body formed of an elastic body which valve body closes the discharge hole and/or a flow passage in the discharge portion connected to the discharge hole when the valve body is not subjected to liquid pressure and opens the discharge hole and/or the passage when the valve body is deformed by liquid pressure; and an air vent connected to the discharge hole and the flow passage through an air-vent filter. The valve body can be deformed by liquid pressure that is lower than liquid passing pressure of the air-vent filter, and the discharge hole and/or the flow passage cannot be opened by passing pressure of air from outside to the air vent filter.

L'invention concerne un élément de vidange à partir duquel un liquide remplissant un contenant flexible s'écoule par pression exercée sur le contenant, ainsi qu'un contenant équipé de cet élément de vidange sur une partie du col de ce contenant. L'élément de vidange comprend une partie de vidange de forme sensiblement cylindrique ou sensiblement en forme de cuvette, comportant sur le fond un orifice de vidange, un corps de clapet formé d'un corps élastique, ce corps fermant l'orifice de vidange et/ou un passage d'écoulement dans cette partie de vidange, reliée à l'orifice de vidange, lorsque le corps de clapet n'est pas sous pression du liquide et ouvrant l'orifice de vidange et/ou le passage lorsque le corps de clapet est déformé sous pression du liquide, et un évent d'air relié à l'orifice de vidange et au passage d'écoulement via un filtre d'évent d'air. Le corps de clapet peut être déformé sous une pression du liquide inférieure à la pression de passage du liquide dans le filtre d'évent d'air, et l'orifice de vidange et/ou le passage d'écoulement ne peuvent être ouverts par la pression de passage d'air provenant de l'extérieur via le filtre d'évent d'air.

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