Cap for a spill-proof beverage container

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 47/20 (2006.01) A47G 19/22 (2006.01)

Patent

CA 2683856

A cap (10) is described for closing a liquid beverage container for allowing the beverage to be sucked oat of the container through a spout (20), while preventing spillage when no suction takes place. A demand valve (16,18) is incorporated into the cap, which has an inlet port (184,186) communicating with the interior of the container, a discharge port communicating with the spout and a control port communicating with the ambient atmosphere through a hole (101) in the cap. In the invention, the demand valve is formed by two members that are mounted on the inner surface of the cap. The first member (18) is rigid and defines the valve inlet port and a valve seat (184). The second member (16) incorporates a valve closure element (164) and a resilient membrane which includes the valve closure element and serves as a pressure sensitive diaphragm. The second member also seals against the first member.

La présente invention concerne un capuchon (10) destiné à fermer un récipient de boisson liquide de façon à permettre d'aspirer la boisson hors du récipient à travers une buse (20), tout en empêchant son déversement lorsqu'elle n'est pas aspirée. Une soupape manAEuvrable à volonté (16,18), incorporée au capuchon, possède un orifice d'entrée (184,186) communiquant avec l'intérieur du récipient, un orifice de sortie communiquant avec la buse et un orifice de commande communiquant avec l'atmosphère ambiante par un trou (101) dans le capuchon. Selon l'invention, cette soupape manAEuvrable à volonté est formée de deux éléments qui sont montés sur la surface intérieure du capuchon. Le premier élément (18) est rigide et définit l'orifice d'entrée de la soupape et le siège de la soupape (184). Le second élément (16) incorpore un élément de fermeture de soupape (164) et une membrane élastique qui comprend l'élément de fermeture de soupape et joue le rôle d'un diaphragme sensible à la pression. Le second élément forme également un joint hermétique contre le premier élément.

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