ES289684U - Threaded cap with adjustable seal (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Screw cap with adjustable seal, especially intended for mouthpieces of containers intended to retain gas under pressure, of the type comprising a substantially cylindrical wall, with internal thread preformed, obtained the set based on a moldable thermoplastic material, which is characterized by having the bottom of its cap or bushing of a flexible lip that is hermetically sealed by pressure to the outside of the mouth of the container, while in its skirt is the cap provided with a mechanical seal essentially formed by a circular ring attached to it by a plurality of ribs in the direction of the generatrix, susceptible to breaking when the cap is unscrewed, with which the body of the latter or cap of the seal ring is separated, preventing from the circular wall of the sealing ring the presence between the ribs that unite initially said elements, of some plateaus in the form of battlements, that serve as stops or anchors between the former in order that the connecting ribs do not suffer stress due to axial forces, the same inner circular wall of the ring being provided with a plurality of generally frustoconical protrusions, which engage elastically as harpoon teeth under the collar or counterbore of the container, being impossible to separate them without breaking them or breaking the seal ring. (Machine-translation by Google Translate, not legally binding)