Device for sealing a fluid product vessel

A device for sealing a fluid product vessel comprising a collar provided with an upper axial edge, said sealing device comprising:

• a stopper comprising a radial plate and an axial drum, said axial drum penetrating inside said collar during assembly, said stopper comprising sealing means for sealing with said vessel,
• an attachment ring for attaching said stopper on said collar, said attachment ring comprising a cylindrical axial sleeve provided on the upper side with a radial flange extending radially inwards and comprising a central opening, said cylindrical axial sleeve comprising, on the lower side, first attachment means to be attached to said collar of said vessel,
• a cover comprising a radial disc and a cylindrical axial envelope extending axially downwards from said radial disc, said cover comprising second attachment means,
• a blocking element comprising a cylindrical axial wall and complementary attachment means engaging in the assembled state with said second attachment means of said cover,
• wherein said axial wall comprises, on one portion of its periphery, a tearable tab defined between two grooves forming bridges of thin material, said tearable tab comprising, on one side, a gripping portion and ending on the opposite side by a flared portion, such that once torn, said axial wall opens out along the entire height thereof, thus making it possible to remove said blocking element from said sealing device;
• wherein said radial plate comprises a central tapping zone defined inside an axial ring;
• and
• wherein, in the assembled state of said sealing device, said radial flange of said attachment ring is positioned on said radial plate of said stopper, said central opening receiving said axial ring and said tapping zone of said stopper.

A device for sealing a fluid product vessel comprising a collar provided with an upper axial edge, said sealing device comprising:

• a stopper comprising a radial plate and an axial drum, said axial drum penetrating inside said collar during assembly, said stopper comprising sealing means for sealing with said vessel,
• an attachment ring for attaching said stopper on said collar, said attachment ring comprising a cylindrical axial sleeve provided on the upper side with a radial flange extending radially inwards and comprising a central opening, said cylindrical axial sleeve comprising, on the lower side, first attachment means to be attached to said collar of said vessel,
• a cover comprising a radial disc and a cylindrical axial envelope extending axially downwards from said radial disc, said cover comprising second attachment means,
• a blocking element comprising a cylindrical axial wall and complementary attachment means engaging in the assembled state with said second attachment means of said cover,
• wherein said axial wall comprises, on one portion of its periphery, a tearable tab defined between two grooves forming bridges of thin material, said tearable tab comprising, on one side, a gripping portion and ending on the opposite side by a flared portion, such that once torn, said axial wall opens out along the entire height thereof, thus making it possible to remove said blocking element from said sealing device;
• and
• wherein the internal diameter of said cylindrical axial envelope of said cover is identical to or very slightly greater than the external diameter of said cylindrical axial sleeve of said attachment ring, such that in the assembled state of the sealing device, said cylindrical axial envelope is positioned around said cylindrical axial sleeve with no or little clearance between them.