Closure for a Container
AssigneeObrist Closures Switzerland GmbH
InventorsLino Dreyer, Alexandre Rouquette
Life of this patent
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Abstract
A closure for a container comprises a circular base, a skirt extending from the periphery of the base, an outer seal, a plug seal in the form of an annulus, and at least one rib lying on the surface of the base in a substantially radial direction and in contact with the radially inner surface of the plug seal at one end for transferring any movement of the base, relative to the skirt, to the plug seal such that the plug seal is pulled radially inward to allow venting of excess pressure within the container. The outer seal of the closure comprises at least one deformation portion which partially interrupts the sealing effect of the outer seal in case overpressure occurs.
Claims18
1-12. (canceled)
A closure for a container comprising a circular base, a skirt extending from the periphery thereof, a plug seal in the form of an annulus and at least one rib lying on the surface of the base in a substantially radial direction and in contact with a radially inner surface of the plug seal at one end for transferring any movement of the base, relative to the skirt, to the plug seal such that the plug seal is pulled radially inward to allow venting of excess pressure within the container, wherein the closure is provided with an outer seal having at least one deformation portion to deform in the case of overpressure to partially interrupt a sealing effect of the outer seal.
Dependencies are inferred from the claim text.