Lid with bistably valved drinking spout

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 51/18 (2006.01) A47G 19/22 (2006.01)

Patent

CA 2580540

A lid with a raised drink-through spout (24) has a hinged flap valve (28) covering a drink opening (26') formed in the surface of the spout. The user opens the valve by pushing the top of a post (28P) on the flap (28F) down. A hinge (28H) holding the flap urges the flap to return to its closed and horizontal orientation, but the top edge of the post will catch under a catch edge of the opening opposite the hinge. This holds the flap open. The user can then drink from the spout. To re-close the valve, the user applies inward force to the outer sidewall (16) below the catch edge. This causes the wall to deflect inwardly and the catch edge to distort outwardly, widening the hole. This releases the post, allowing it to move upwardly so that the flap can spring back to its horizontal and closed position.

Selon l'invention, un couvercle pourvu d'un bec verseur pour boire surélevé (24) présente une valve à clapet articulé (28) recouvrant une ouverture d'une boisson (26') formée dans la surface dudit bec verseur. L'utilisateur ouvre la valve en poussant vers le bas sur la partie supérieure d'un montant (28P) sur le clapet (28F). Une charnière (28H) retenant le clapet pousse ce dernier pour le ramener à son orientation fermée et horizontale, mais le bord supérieur du montant se bloque dans un bord de cliquet de l'ouverture opposée à la charnière. Ceci permet de maintenir le clapet ouvert. Un utilisateur peut alors boire à même le bec verseur. Pour refermer le clapet, l'utilisateur applique une force interne sur la paroi latérale externe (16) en dessous du bord de cliquet. Ceci provoque une déviation de la paroi vers l'intérieur et du bord de cliquet vers l'extérieur, ce qui élargit le trou. Le montant est libéré, il peut se déplacer vers le haut, de manière que le clapet peut rebondir à sa position horizontale et fermée.

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