초록 ▼

A container for storing a product under pressure and dispensing the stored product comprises a container body having screw threads arranged about an opening of the container body, a valve for dispensing a pressurized product from the container, and a closure having screw threads thereon threaded ont

A container for storing a product under pressure and dispensing the stored product comprises a container body having screw threads arranged about an opening of the container body, a valve for dispensing a pressurized product from the container, and a closure having screw threads thereon threaded onto the threaded container body for fastening the closure and the valve to the container body to close the opening. One or more passages are provided in the container body and/or the closure for introducing pressurized gas between the closure and container body and into the container through the container opening when the closure is being screwed onto the container body. In a preferred embodiment, the container is a barrier pack container having an inner collapsible container located within the container body to provide separate chambers for propellent and product. The inner collapsible container is sealingly retained onto the valve during assembly of the container at a valve portion having on each of two opposite sides thereof an outwardly flared portion which tapers to an outer tip.

대표청구항 ▼

1. A container for storing a product under pressure and dispensing the stored product, comprising a container body having an opening with screw threads arranged on the container body about the opening, a valve for dispensing a pressurized product from the container, a closure having screw threads th

1. A container for storing a product under pressure and dispensing the stored product, comprising a container body having an opening with screw threads arranged on the container body about the opening, a valve for dispensing a pressurized product from the container, a closure having screw threads thereon in threaded engagement with the threads of the container body about said opening for fastening the closure and the valve to the container body to close said opening, and at least one passage in at least one of the container body and the closure through which pressurized gas can be flowed into the container body through said opening when the closure is being screwed onto the container body, pressurized gas flow communication between said at least one passage and the container body opening being closed as a result of closure of said opening by the closure and the valve when the closure is screwed tightly onto the container body. 2. The container according to claim 1, wherein said valve is mounted on said closure. 3. The container according to claim 1, wherein said opening of the container body is located in a threaded neck of the container body. 4. The container according to claim 1, further comprising a product mixed with a propellant in said container. 5. The container according to claim 1, wherein said container body is a standard size container body with a threaded top. 6. The container according to claim 1, wherein said at least one passage is located radially outward of said container body opening in at least one of the container body and the closure. 7. The container according to claim 1, wherein said at least one passage includes slots formed in the screw threads of at least one of the container body and the closure, said slots extending transverse to the screw threads. 8. The container according to claim 7, wherein said slots are formed in the screw threads of the container body. 9. The container according to claim 1, wherein said at least one passage includes apertures extending through the closure. 10. The container according to claim 9, wherein said apertures are located adjacent said screw threads of the closure. 11. The container according to claim 1, further comprising means for resisting unscrewing of the closure with respect to the container body. 12. The container according to claim 11, wherein said means for resisting includes a snap-on arrangement between respective portions of said closure and said container body which are engaged with one another to resist unscrewing of the closure as a result of the closure being screwed onto the container body. 13. The container according to claim 12, wherein said portion of the closure is a projection and said portion of the container body is a flange engaged by said projection, said projection being forced over said flange when the closure is screwed onto the container body. 14. The container according to claim 1, wherein the container body is formed of plastic. 15. The container according to claim 1, wherein the closure is formed of plastic. 16. The container according to claim 1, further comprising a seal which extends about said container body opening between said valve and said container body. 17. The container according to claim 16, wherein said seal engages said container body and the outer rim of a valve cup of said valve, said valve cup and seal being pressed in the direction of said container by said closure to close said opening. 18. The container according to claim 1, further comprising an inner collapsible container located within said container body for containing a pressurized product, said inner collapsible container being arranged within the container body such that the interior of the inner collapsible container is in communication with said valve for dispensing product in the inner collapsible container from the container, an intermediate chamber being defined in the container between the container body and the inner collapsible container with the pressurized gas being located in said intermediate chamber for pressuring the inner collapsible container. 19. The container according to claim 18, further comprising sterile saline solution in said inner collapsible container. 20. The container according to claim 18, further comprising liquid coffee concentrate in said inner collapsible container. 21. A container according to claim 18, wherein said inner collapsible container is in the form of a bag or pouch formed of a flexible, single layer or laminated material. 22. The container according to claim 18, wherein said inner collapsible container is retained on said valve such that pressurized gas can flow into said intermediate chamber through said at least one passage before the closure is screwed tightly onto the container body. 23. The container according to claim 18, wherein said inner collapsible container is bonded to a portion of the valve for retaining the inner collapsible container on the valve. 24. The container according to claim 23, wherein said portion of the valve to which said inner collapsible container is bonded has an outward configuration, as seen in a cross-section taken perpendicular to a longitudinal central axis of said portion, which has on each of two opposite sides thereof an outwardly flared portion which tapers to an outer tip of the flared portion. 25. The container according to claim 24, wherein said flared portions taper along harmonic curves. 26. An assembly for threaded connection to a plastic outer container body for making a barrier pack, pressurized dispensing container, said assembly comprising a closure for the container, a valve for dispensing a pressurized product from the container, and a collapsible container bonded to the valve for use as an inner container for containing a product within the outer container body of the barrier pack container to define an intermediate chamber in the barrier pack, pressurized dispensing container between the outer container body and the inner collapsible container, said closure having screw threads thereon for engaging screw threads on the outer container body about an opening in the outer container body, and said collapsible container being bonded to the valve such that during screwing of the closure on the outer container body pressurized gas can be introduced in the intermediate chamber of the container between the inner collapsible container and the outer container body before the closure is screwed tightly onto the outer container body. 27. An assembly according to claim 26, further comprising means on the closure for resisting unscrewing of the closure with respect to the outer container body after the closure has been tightly screwed onto the outer container body. 28. An assembly according to claim 27, wherein said means for resisting comprises a radially inwardly extending projection on said closure which forms part of a snap-on arrangement with the outer container body when the closure is screwed tightly onto the outer container body. 29. An assembly for making a barrier pack pressurized dispensing container, said assembly comprising a closure for the container, a valve for dispensing a pressurized product from the container, and a collapsible container for use as an inner container for containing a product within the outer container body of the barrier pack container to define an intermediate chamber in the barrier pack, pressurized dispensing container between the outer container body and the inner collapsible container, said closure having screw threads thereon for engaging screw threads on the outer container body about an opening in the outer container body, and said collapsible container being retained on the valve such that during screwing of the closure on the outer container body pressurized gas can be introduced into the intermediate chamber of the container between the inner collapsible container and the outer container body before the closure is screwed tightly onto the outer container body, wherein said closure includes at least one passage through which pressurized gas can be flowed into the intermediate chamber of the barrier pack container through said opening in the outer container body when the closure is partially screwed onto the outer container body, communication between said at least one passage and the opening in the outer container body being closed when the closure is screwed tightly onto the outer container body to close said opening. 30. An assembly according to claim 29, wherein the at least one passage includes apertures extending through the closure. 31. An assembly according to claim 30, wherein said apertures are located adjacent the screw threads of the closure. 32. An assembly for making a barrier pack pressurized dispensing container, said assembly comprising a closure for the container, a valve for dispensing a pressurized product from the container, and a collapsible container for use as an inner container for containing a product within the outer container body of the barrier pack container to define an intermediate chamber in the barrier pack, pressurized dispensing container between the outer container body and the inner collapsible container, said closure having screw threads thereon for engaging screw threads on the outer container body about an opening in the outer container body, and said collapsible container being retained on the valve such that during screwing of the closure on the outer container body pressurized gas can be introduced into the intermediate chamber of the container between the inner collapsible container and the outer container body before the closure is screwed tightly onto the outer container body, wherein said collapsible container is bonded to the outer surface of a portion of the valve which, as seen in a cross-section taken perpendicular to a longitudinal central axis of said portion, has an outwardly flared portion on each of two opposite sides, each outwardly flared portion tapering to an outer tip. 33. An assembly according to claim 32, wherein said flared portions taper along harmonic curves. 34. An assembly for making a barrier pack pressurized dispensing container, said assembly comprising a closure for the container, a valve for dispensing a pressurized product from the container, and a collapsible container for use as an inner container for containing a product within the outer container body of the barrier pack container to define an intermediate chamber in the barrier pack, pressurized dispensing container between the outer container body and the inner collapsible container, said closure having screw threads thereon for engaging screw threads on the outer container body about an opening in the outer container body, and said collapsible container being retained on the valve such that during screwing of the closure on the outer container body pressurized gas can be introduced into the intermediate chamber of the container between the inner collapsible container and the outer container body before the closure is screwed tightly onto the outer container body, wherein said collapsible container is in the form of a bag or pouch formed of a flexible sheet material which is bonded to said valve. 35. An assembly for making a barrier pack pressurized dispensing container, said assembly comprising a closure for the container, a valve for dispensing a pressurized product from the container, and a collapsible container for use as an inner container for containing a product within the outer container body of the barrier pack container to define an intermediate chamber in the barrier pack, pressurized dispensing container between the outer container body and the inner collapsible container, said closure having screw threads thereon for engaging screw threads on the outer container body about an opening in the outer container body, and said collapsible container being bonded to the valve such that during screwing of the closure on the outer container body pressurized gas can be introduced into the intermediate chamber of the container between the inner collapsible container and the outer container body before the closure is screwed tightly onto the outer container body, wherein said valve comprises a valve cup with an outer rim, and wherein said assembly further comprises a seal which extends about the outer rim of the valve cup of the valve for sealing between the valve and outer container body when the closure is screwed tightly onto the outer container body. 36. An assembly according to claim 35, wherein said valve and said seal are mounted on said closure for threaded connection to the outer container body. 37. A valve for a barrier pack, pressurized dispensing container, comprising a valve body, a passage extending through said valve body, a valve stem with valve head which is movable for opening and closing said passage, wherein at least a portion of the outer surface of the valve body, as seen in a cross-section taken perpendicular to a longitudinal central axis of said passage, has on each of two opposite sides thereof an outwardly flared portion which tapers to an outer tip. 38. The valve according to claim 37, wherein the outwardly flared portions taper along harmonic curves. 39. The valve according to claim 37, further comprising a valve cup in which the valve body is supported, said valve cup having an outer rim by which said valve can be clamping supported in a container. 40. A method of making a pressurized dispensing container comprising providing a container body, a threaded closure for the container body and a valve for said container, said container body having an opening with screws threads arranged on the container body about the opening, and sealingly closing said opening in the container body by screwing the threaded closure onto the threaded container body so as to mount said closure and the valve on said container body, and wherein said method includes introducing a pressurized gas into the container between the closure and container body before said closure is completely screwed onto said container body for sealingly closing the opening in the container body. 41. The method according to claim 40, including providing means for resisting accidental unscrewing of the closure with respect to the container body. 42. The method according to claim 40, including providing an inner collapsible container within the container body before said closing so as to define an intermediate chamber in the container between the container body and the inner collapsible container, and wherein said pressurized gas is introduced into said intermediate chamber of the container for pressuring the inner collapsible container. 43. The method according to claim 42, including bonding the inner collapsible container to a portion of the valve which has outwardly flared portions on opposite sides thereof, said outwardly flared portions each tapering to an outer tip. 44. The method according to claim 40, including introducing a product into the container through said valve subsequent to sealingly closing said opening of the container body with said closure. 45. The method according to claim 40, wherein at least one passage is formed in the container body said pressurized gas being introduced through the at least one passage when the closure is being screwed onto the container body for flowing the gas between the closure and container body. 46. The method according to claim 40, wherein at least one passage is formed in the closure, said pressurized gas being introduced through the at least one passage when the closure is being screwed onto the container body for flowing the gas between the closure and container body.