Abstract: A closure assembly for a container comprising a pressurised tank and a plug member, the pressurised tank has an interior volume and a cylindrical wall including an annular boss member at its open end. The plug member has an annular channel arranged at a first side of the plug member adapted to sealingly engage with the boss member. The channel has at least one orifice extending from the floor or outer side wall of the channel to a nozzle at the second side of the plug member. The orifice is sealed from the interior volume of the tank when the channel is sealingly engaged with the boss member in a first position, but is in fluid communication with the interior volume of the tank when at least part of the channel is no longer engaged with the boss member in a second position.

Abstract: A closure device for use with a container having a container neck comprises a cap member having a first fluid chamber and a housing having a second fluid chamber. The housing is arranged to move relative to the cap member between a first armed position and a second firing position. The housing includes a first plug member adapted to close a bottom aperture in the first fluid chamber in the first armed position. The cap member includes a second plug member adapted to close a bottom aperture in the second fluid chamber in the first armed position. In the second firing position the first plug member is removed from the aperture in the first fluid chamber and the second plug member is removed from the aperture in the second fluid chamber.

Abstract: A closure device for use with a beverage container comprises a spout cap member having a top wall with a spout aperture covered by a spout cover, a side wall for securing to a neck of the container, and a plug support structure. A fluid chamber containing an additive liquid and a pressurised propellant is movably held within the spout cap member. A plug member is fixed to the plug support structure and sealingly engages a bottom aperture of the fluid chamber. The spout cover includes a strut extending through the spout aperture to an abutment surface on the fluid chamber.

Abstract: A pressure pack dispenser (100) for dispensing a product comprises a cylindrical container (401) with a product outlet through which the product is dispensed, a composite piston (408) movably mounted within the container, and a pressurised propellant. The composite piston comprises a first upper piston (409A) coupled to a second lower piston (409B) to permit limited relative axial movement and a viscous sealant material (410) located between the first and second pistons. The propellant comprises a compressed gas which remains in the gaseous phase as the piston (408) moves from a first full position to a second exhausted position, or a mixture of a liquid propellant and a compressed gas selected such that in the full position the mixture is at a pressure greater than the vapour pressure of the liquid propellant. A clearance is provided between the second lower piston (409B) and the container wall (401A) which is filled with the sealant (410) as the composite piston moves to expel product.

Abstract: A closure device for firing an additive into a carbonated beverage bottle with a neck comprises a cap member and a housing. The cap member includes a pressurised tank containing the additive and a propellant and has a bottom aperture. The housing engages with the neck and includes a plug member which engages with the bottom aperture. The cap member can be lifted relative to the housing from a first armed or closed position in which the plug member closes the bottom aperture to a second firing position in which the plug member provides a communication path from the tank through a nozzle in the plug member.

Abstract: A closure device (210) for dispensing an additive product into a container (34) having a main liquid compartment and an opening with a threaded container neck (38) comprises a cap member (36) having a threaded side wall (37) adapted to be secured to the threaded container neck (38), a pressurised fluid chamber (60) fixed to the cap member (36) containing an additive product, and a plug member housing (54) including a plug member (64) engageable in a bottom aperture (66) of the fluid chamber and a flange portion (58) adapted to extend across the top of the container neck (38).

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.

Abstract: A closure device (210) for dispensing an additive product into a container (34) having a main liquid compartment and an opening with a threaded container neck (38) comprises a cap member (36) having a threaded side wall (37) adapted to be secured to the threaded container neck (38), a pressurised fluid chamber (60) fixed to the cap member (36) containing an additive product, and a plug member housing (54) including a plug member (64) engageable in a bottom aperture (66) of the fluid chamber and a flange portion (58) adapted to extend across the top of the container neck (38).

Abstract: A pressure pack dispenser (100) for dispensing a product comprises a cylindrical container (401) with a product outlet through which the product is dispensed, a composite piston (408) movably mounted within the container, and a pressurised propellant. The composite piston comprises a first upper piston (409A) coupled to a second lower piston (409B) to permit limited relative axial movement and a viscous sealant material (410) located between the first and second pistons. The propellant comprises a compressed gas which remains in the gaseous phase as the piston (408) moves from a first full position to a second exhausted position, or a mixture of a liquid propellant and a compressed gas selected such that in the full position the mixture is at a pressure greater than the vapour pressure of the liquid propellant. A clearance is provided between the second lower piston (409B) and the container wall (401A) which is filled with the sealant (410) as the composite piston moves to expel product.

Abstract: A valve assembly (10) for dispensing a flowable product from a pressurised container (200), the valve assembly comprises a resilient sleeve member (16) comprising a lower fixing portion (18), an intermediate deformable portion (20) and an upper sealing portion (22), a valve stem (28) extending within the resilient sleeve member (16) and fixed to the lower fixing portion (18) of the resilient sleeve member (16), and an actuator (46) mounted on the upper sealing portion (22) of the resilient sleeve member (16). The valve stem (28) includes a hollow cylindrical body (38), an end cap (32) closing an upper end of the hollow cylindrical body (38), and one or more apertures (34) arranged around the circumference of the hollow cylindrical body (38) adjacent to the end cap (32). The apertures (34) are covered by the upper sealing portion (22) of the resilient sleeve member (16) in a closed position of the valve assembly (10).

Abstract: A closure device for firing an additive into a carbonated beverage bottle with a neck comprises a cap member and a housing. The cap member includes a pressurised tank containing the additive and a propellant and has a bottom aperture. The housing engages with the neck and includes a plug member which engages with the bottom aperture. The cap member can be lifted relative to the housing from a first armed or closed position in which the plug member closes the bottom aperture to a second firing position in which the plug member provides a communication path from the tank through a nozzle in the plug member.

Abstract: A closure assembly for a container comprising a pressurised tank and a plug member, the pressurised tank has an interior volume and a cylindrical wall including an annular boss member at its open end. The plug member has an annular channel arranged at a first side of the plug member to sealingly engage with the boss member. The channel has at least one orifice extending from the floor or outer side wall of the channel to a nozzle at the second side of the plug member. The orifice is sealed from the interior volume of the tank when the channel is sealingly engaged with the boss member in a first position, but is in fluid communication with the interior volume of the tank when at least part of the channel is no longer engaged with the boss member in a second position.

Abstract: A closure device for use with a beverage container comprises a spout cap member having a top wall with a spout aperture covered by a spout cover, a side wall for securing to a neck of the container, and a plug support structure. A fluid chamber containing an additive liquid and a pressurised propellant is movably held within the spout cap member. A plug member is fixed to the plug support structure and sealingly engages a bottom aperture of the fluid chamber. The spout cover includes a strut extending through the spout aperture to an abutment surface on the fluid chamber.

Abstract: A closure device for use with a container having a container neck comprises a cap member having a first fluid chamber and a housing having a second fluid chamber. The housing is arranged to move relative to the cap member between a first armed position and a second firing position. The housing includes a first plug member adapted to close a bottom aperture in the first fluid chamber in the first armed position. The cap member includes a second plug member adapted to close a bottom aperture in the second fluid chamber in the first armed position. In the second firing position the first plug member is removed from the aperture in the first fluid chamber and the second plug member is removed from the aperture in the second fluid chamber.

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.

Abstract: A valve assembly (10) for dispensing a flowable product from a pressurised container (200), the valve assembly comprises a resilient sleeve member (16) comprising a lower fixing portion (18), an intermediate deformable portion (20) and an upper sealing portion (22), a valve stem (28) extending within the resilient sleeve member (16) and fixed to the lower fixing portion (18) of the resilient sleeve member (16), and an actuator (46) mounted on the upper sealing portion (22) of the resilient sleeve member (16). The valve stem (28) includes a hollow cylindrical body (38), an end cap (32) closing an upper end of the hollow cylindrical body (38), and one or more apertures (34) arranged around the circumference of the hollow cylindrical body (38) adjacent to the end cap (32). The apertures (34) are covered by the upper sealing portion (22) of the resilient sleeve member (16) in a closed position of the valve assembly (10).