Patent ID: 10773868

Abstract:
A closure device (210) for use on the neck (238) of a bottle comprises a cap member (236) having a side wall (237) adapted to be secured to the neck, a fluid chamber (260) fixed at its upper end to the cap member and having a bottom aperture (266) at its lower end, a housing (254) at least partially surrounding the fluid chamber and having a flange member (258) adapted to extend at least partially across the top of the container neck, and a plug member (264) fixed to the housing and sealingly engageable in the bottom aperture of the fluid chamber. The plug member (264) has a nozzle (274) therein, and the housing (254) is adapted to move relative to the cap member (236) between a first closed position of the closure device before securing to the neck of the bottle, in which the plug member (264) seals the bottom aperture (266) closed and the housing or cap member is engaged by a detent member (204) provided to prevent movement of the housing away from the cap member, and a second armed position in which the closure device is secured to the neck of the bottle, and in which the plug member (264) continues to seal the bottom aperture (266) closed and the flange member (258) or detent member (204) is deformed to a position in which the housing can no longer be engaged by the detent member (204). An internal rib (206) on the housing may engage with the detent member to prevent movement of the housing away from the cap member in the first closed position of the closure device. The detent member (204) may be deformable such that in the second armed position of the closure device the detent member is deformed to a position in which the internal rib can no longer be engaged by the detent member, to permit the closure device to move to a third firing position when the closure device is removed from the neck.