Patent ID: 7621416
Filing Date: 2009-11-24
Classification: B65D,F16K

Abstract:
1. A cover for a container comprising a shell bulged upwards; a hollow ( 2 ) having an elliptical outline pointed downwards and towards an inside of the container and disposed in said shell; a spherical projection ( 3 ), pointed upwards, and disposed in the hollow; a cylindrical cavity ( 4 ) disposed in the spherical projection ( 3 ); an opening ( 5 ) in a bottom of the cylindrical cavity; a valve head ( 6 ) formed as a circular plate ( 7 ) attached on a lower side in a middle to an end of a cylindrical stem and wherein the cylindrical stem is moveably supported in the opening ( 5 ); a ring shaped gasket ( an edge ( a sleeve ( wherein the spherical projection (