ES197953U - Double effect irrellenable tapón. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Non-refillable double-acting stopper, of which comprise a valve body and a valve seat, both fixed to the neck of a bottle, and a mushroom-shaped valve member, which in turn comprises a cylindrical stem and a head portion hollow, whose outer surface is a surface of revolution adapted to fit hermetically into the valve seat, this valve member being movable within a valve body and being guided therein by guiding means comprising an internal tubular expansion of the valve body with a diameter much larger than said cylindrical shank and a plurality of ribs radially extended inwardly from said valve body, to define a cavity with a diameter much larger than said valve head portion, characterized in that the valve seat, in addition to the surface of revolution of seat for the airtight fit with the surface, also of revolution of the head of the mushroom-shaped valve member, has an extension that starts at the lower edge of said seat revolution surface, and is directed towards the inside of the neck of the bottle, said extension being a body of revolution in the form of a vessel, in the bottom of which there is a second circular opening, with a second surface of revolution of horizontal seat, adapted to fit hermetically with a second valve member in the form of a sphere, the diameter of the sphere of said second valve member being such, which has a gap within the cavity between the hollow of the head of the mushroom-shaped valve member and the extension of the valve seat when the head of said fungus-shaped valve member is applied against its seat, allowing said clearance a second hermetic seal of the bottle, independent of the first, by the action of the own weight of the second valve body, spherical, on the second to seat surface, when the bottle is arranged in vertical position. (Machine-translation by Google Translate, not legally binding)