Method and device for preventing the inadvertent outflow of...

A - Human Necessities – 47 – G

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A47G 21/18 (2006.01) B65D 47/20 (2006.01) B65D 47/24 (2006.01) B65D 77/28 (2006.01)

Patent

CA 2469105

A method and device for preventing unintended liquid flow from drinking containers are achieved by means of securing an inner tube (29) provided with a bellows (4) within an outer tube (1) and terminating one end of the inner tube (29) as a valve (70, 70~), whereby the suction force from the user provides a pressure difference across the bellows (4), causing the bellows (4) to move the valve (70, 70~) with sufficient force to open. When the suction force ceases, the valve (70, 70~) closes, and it remains closed, even when the liquid in the drinking container (61) is pressurized with pressure (P3).

La présente invention a trait à un procédé et à un dispositif empêchant l'écoulement non intentionnel d'un liquide provenant de récipients pour boisson. A cet effet, on utilise des moyens de fixation d'un tube interne (29) doté d'un soufflet (4) dans un tube externe (1) et des moyens de terminaison d'une extrémité du tube interne (29) sous forme de valve (70, 70'), de telle sorte que la force d'aspiration de l'utilisateur entraîne une différence de pression à travers le soufflet (4), ce qui se traduit par le déplacement de la valve (70, 70') grâce à l'application de force suffisante pour assurer l'ouverture. Lorsque la force d'aspiration cesse, la valve (70, 70') se referme, et reste fermée, même lorsque le liquide contenu dans le récipient pour boisson (61) est soumis à une pression (P3).

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