摘要:
The invention provides a pressure safety closure assembly for carbonated beverage containers, the assembly comprising: a container neck (10); a closure (12) for the neck; first and second screw threads (14, 16) on said neck (10) and closure (12); the second screw thread (16) being engageable with the first screw thread (14); means for forming a seal between the neck (10) and closure (12) when the closure is screwed down on the neck; mutually engageable elements on the neck and closure to block or restrict rotation of the closure (12) in an unscrewing direction beyond an intermediate position when the closure is under an axial pressure in a direction emerging from the container neck; means to allow gas venting at the blocked intermediate position; and the assembly further comprising locking means (18, 19) on the container neck and closure (12) to retain the closure screwed down on the neck (10) until an external screwing torque is applied to the closure.
摘要:
The invention provides a pressure safety closure assembly for carbonated beverage containers, the assembly comprising: a container neck (10); a closure (12) for the neck; first and second screw threads (14, 16) on said neck (10) and closure (12); the second screw thread (16) being engageable with the first screw thread (14); means for forming a seal between the neck (10) and closure (12) when the closure is screwed down on the neck; mutually engageable elements on the neck and closure to block or restrict rotation of the closure (12) in an unscrewing direction beyond an intermediate position when the closure is under an axial pressure in a direction emerging from the container neck; means to allow gas venting at the blocked intermediate position; and the assembly further comprising locking means (18, 19) on the container neck and closure (12) to retain the closure screwed down on the neck (10) until an external screwing torque is applied to the closure.
摘要:
The invention relates to improved child-resistant container closure assemblies comprising a container neck and a closure. The closure comprises an inner part (350) and an outer part (310), whereby the outer part (310) must be axially displaced relative to the inner part (350) by pressing down on the outer part (310) in order to unscrew the closure from its fully secured position on the container neck. The risk of accidental unscrewing of the closure without depression of the outer closure part is reduced by the provision of a first retaining means on the container neck and a second retaining means (358) on the inner closure part (350). The first and second retaining means engage at said fully secured position, and resist loosening of the closure from the fully secured position until a predetermined minimum release torque is applied to the inner closure part (350).