Patent ID: 6679395
Filing Date: 2004-01-20
Classification: B65D,Y10S

Abstract:
A closure cap, comprising:a cap base; a cap wall having wall thickness, an inner side, and a deformable wall section; a circumferential inner seal rising from the cap base, the inner seal having a sealing line which in a screwed on position of said closure cap is capable of being engaged with an inner side of a container opening; retaining elements arranged on the cap wall, for retaining the closure cap on the container opening; a first abutment rising from the cap base; a second abutment axially arranged between the retaining elements and the first abutment, for limiting screwing-on movement; wherein the deformable wall section is axially arranged between the first abutment and the second abutment, capable of at least linear displacement upon an exerted force; and wherein a distance between the first abutment and the second abutment, a penetration depth of the sealing line, and a degree of deformability of the deformable wall section are selected in a manner such that the sealing line at a predeterminable inner pressure is capable of being brought out of sealing engagement with the inner side of the container opening.