Patent ID: 6705592
Filing Date: 2004-03-16
Classification: B67D,F16K,F16L,Y10T

Abstract:
A closure for a container to be pressurised, comprising a housing to be fixed to the container, in which a passage is present, whilst a seat is arranged in said passage, which seat is intended to mate with a closing element, which is urged in the direction of the seat by means of a coil spring surrounding said closing element, said coil spring being confined between a part of the closing element and a few spaced-apart projections formed in one piece with the housing, which are connected to the remaining part of the housing by means of a few spaced-apart arms, said coil spring and said projections being capable of resilient deformation relative to each other, in such a manner that the spring can be moved past the projections in its position of use, characterized in that the closure is provided with two diametrically opposite projections formed on the inner circumference of a ring-shaped element being in one piece with said projections, which ring-shaped element is connected to the remaining part of the housing via two diametrically opposite arms located between the projections, seen in the direction of the central axis of the housing, whilst one end of the spring is directly supported on said projections.