A sealing and dispensing closure for the outlet opening of a package, such as a flexible plastic bottle containing a consumable beverage. The closure comprises a closure base which is threaded onto the outlet opening of the bottle, and a removable overcap which is pivotally connected to the closure base. The closure base includes a spout having a self-sealing dispensing valve therein which is movable from a lowered closed position to a raised open position by an increased pressure in the bottle resulting from the squeezing of the bottle. The valve is positioned at a recessed location within the spout so as to preclude access to the valve by the consumer when the valve is lifted to its raised open position, and the overcap includes a post which seats in the upper end of the spout when the overcap is mounted on the closure base, and so as to form a hermetically sealed chamber above the valve which prevents the valve from lifting to its raised position in the event the bottle is inadvertently squeezed.

Un lacre y un encierro que dispensa para la abertura del enchufe de un paquete, tal como una botella plástica flexible que contiene una bebida consumible. El encierro abarca una base del encierro que se rosque sobre la abertura del enchufe de la botella, y un overcap desprendible que giratorio esté conectado con la base del encierro. La base del encierro incluye un canalón que tiene una válvula que dispensa autoadhesiva en esto que sea movible de una posición cerrada bajada a una posición abierta levantada por una presión creciente en la botella resultando de exprimir de la botella. La válvula se coloca en una localización ahuecada dentro del canalón para imposibilitar el acceso a la válvula del consumidor cuando la válvula se levanta a su posición abierta levantada, y el overcap incluya un poste que asiente en el extremo superior del canalón cuando el overcap se monta en la base del encierro, y para formar un compartimiento hermético sellado sobre la válvula que evita que la válvula levante a su posición levantada en el acontecimiento la botella esté exprimida inadvertidamente.

 
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