Straw with leakage prevention

A - Human Necessities – 45 – F

Patent

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Details

A45F 3/16 (2006.01) A47G 21/18 (2006.01) A61J 15/00 (2006.01)

Patent

CA 2552413

A flexible check valve is introduced within a fluid path for leakage protection. The flexible check valve (300) can be a duckbill/crossbill valve comprising multiple flexible members (306) that restrict the flow of fluid in a tubular member. The flexible check valve is preferably used in conjunction with drinking straw (100) to prevent liquid from exiting a container such as drink box (200). Preferably, the flexible check valve is crossbill valve (400) that is attached using adapter (900). Liquid is designed to only flow through when an external compressive force (405) (e.g. users fingers or lips) is applied to the valve. When force is no longer applied to the valve section, the valve returns to its normally closed position and fluid is wholly or substantially prevented from exiting.

Selon la présente invention, un clapet de non retour flexible est introduit à l'intérieur d'une voie de liquide de manière à engendrer une protection contre les fuites. Ce clapet de non retour flexible (300) peut constituer un clapet à bec de canard/à bec d'âne doté de plusieurs éléments flexibles (306) qui limitent l'écoulement du liquide dans un élément tubulaire. Ledit clapet de non retour flexible est, de préférence, utilisé avec une paille (100) afin d'empêcher le liquide de sortir d'un contenant, tel qu'une brique (200). De préférence, ce clapet de non retour flexible constitue un clapet à bec d'âne (400) attaché au moyen d'un adaptateur (900). Le liquide ne peut s'écouler que, lorsqu'une force de compression externe (405) (par ex., les doigts ou lèvres d'utilisateurs) est appliquée sur le clapet. Lorsqu'aucune force n'est plus appliquée sur la section du clapet, ce dernier retourne à sa position fermée normale et le liquide ne peut pratiquement pas, voire pas du tout s'échapper.

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