Abstract: A closure device includes a first part forming a fastening base for fastening to a container neck and second part forming a lid. The second part includes a fastening ring and a hinge connecting the fastening ring to the lid and permitting the lid to pivot relative to the fastening ring between closed and open positions. The fastening ring snaps into a fastening groove in the first part. The second part has a first-opening indicator and a frangible connection between the first-opening indicator and a peripheral rim flange of the lid. A free space between the fastening ring and the first-opening indicator exists when the lid is in the closed position prior to the first opening. Two lock zones on the first part engage the first-opening indicator such that the first-opening indicator separates from the lid and drops into the free space upon the first opening.

Abstract: A closure device includes a first part forming a fastening base for fastening to the container neck and having at least one peripheral fastening groove and a second part forming a lid, a fastening ring defining a reference geometrical axis, and a hinge connecting the fastening ring to the lid for guiding the lid relative to the fastening ring between a closed position and an open position, the fastening ring being engaged by snap-in action into the fastening groove of the first part. The second part additionally also forms a first-opening indicator and a frangible connection between the first-opening indicator and a peripheral rim flange of the lid, a free space being maintained in the axial direction between the fastening ring and the first-opening indicator in the closed position prior to the first opening, the first-opening indicator being retained by at least one lock zone of the first part so as to be separated from the lid and drop into the free space upon the first opening.

Abstract: The disclosure includes a cap having a first portion made of a plastic material and forming a bottom for covering a container neck and a protective side wall for surrounding the container neck, and a second portion made of a flexible material that is compatible with the plastic material of the first portion and separate from the plastic material of the first portion, the second portion being annular and consisting of a flexible seal, which projects from the bottom toward the interior of the side wall and which is welded to the first portion. Thus, the manufacture of the stopper by molding includes injecting a flexible material to produce the flexible annular seal and then the movable portions of the mold are placed such that the flexible material is in a groove that is set back from the planar surface of the mold.

Abstract: The disclosure includes a cap having a first portion made of a plastic material and forming a bottom for covering a container neck and a protective side wall for surrounding the container neck, and a second portion made of a flexible material that is compatible with the plastic material of the first portion and separate from the plastic material of the first portion, the second portion being annular and consisting of a flexible seal, which projects from the bottom toward the interior of the side wall and which is welded to the first portion. Thus, the manufacture of the stopper by molding includes injecting a flexible material to produce the flexible annular seal and then the movable portions of the mold are placed such that the flexible material is in a groove that is set back from the planar surface of the mold.

Abstract: A closure device includes a first part forming a fastening base for fastening to the container neck and having at least one peripheral fastening groove and a second part forming a lid, a fastening ring defining a reference geometrical axis, and a hinge connecting the fastening ring to the lid for guiding the lid relative to the fastening ring between a closed position and an open position, the fastening ring being engaged by snap-in action into the fastening groove of the first part. The second part additionally also forms a first-opening indicator and a frangible connection between the first-opening indicator and a peripheral rim flange of the lid, a free space being maintained in the axial direction between the fastening ring and the first-opening indicator in the closed position prior to the first opening, the first-opening indicator being retained by at least one lock zone of the first part so as to be separated from the lid and drop into the free space upon the first opening.

Abstract: The disclosure includes a cap having a first portion made of a plastic material and forming a bottom for covering a container neck and a protective side wall for surrounding the container neck, and a second portion made of a flexible material that is compatible with the plastic material of the first portion and separate from the plastic material of the first portion, the second portion being annular and consisting of a flexible seal, which projects from the bottom toward the interior of the side wall and which is welded to the first portion. Thus, the manufacture of the stopper by molding includes injecting a flexible material to produce the flexible annular seal and then the movable portions of the mold are placed such that the flexible material is in a groove that is set back from the planar surface of the mold.

Abstract: The disclosure includes a cap having a first portion made of a plastic material and forming a bottom for covering a container neck and a protective side wall for surrounding the container neck, and a second portion made of a flexible material that is compatible with the plastic material of the first portion and separate from the plastic material of the first portion, the second portion being annular and consisting of a flexible seal, which projects from the bottom toward the interior of the side wall and which is welded to the first portion. Thus, the manufacture of the stopper by molding includes injecting a flexible material to produce the flexible annular seal and then the movable portions of the mold are placed such that the flexible material is in a groove that is set back from the planar surface of the mold.