Abstract: A closure includes an annular base to be fixed to an upper rim of a container. The base includes a peripheral skirt having an end portion to be arranged over the upper rim of the container. A peripheral locking rim is integrally formed on the end portion of the peripheral skirt. The locking rim has a proximal end hingedly connected to the peripheral skirt and allowing the peripheral locking rim to be folded inwardly towards an inner surface of the end portion, such that, when the locking rim is in the folded state, a distal end thereof can move beyond and engage under a peripheral ledge of the container to lock the base to the container. The end portion of the skirt has on the inner surface an engagement surface portion and a widening surface portion towards an end of the peripheral skirt.

Abstract: A self-closing dispensing valve is made of an elastic material and includes a valve head with a dispensing orifice, a circular peripheral retaining flange spaced apart from the valve head in an axial direction, and a connector sleeve integrally connected with the valve head on one end and the retaining flange on another end. The elastic material is a plastomer or a thermoplastic elastomer. The connector sleeve is substantially form stable. The valve head is connected to an upper end of the connector sleeve by a hinge portion that is U-shaped in cross section. The wall thickness of the hinge portion is smaller than the wall thickness of the connector sleeve and is staggered at the transition between the connector sleeve and the hinge portion. Alternatively, if the connector sleeve is omitted, then the valve head is directly connected to the retaining flange.

Abstract: A closure includes an annular base to be fixed to an upper rim of a container. The base includes a peripheral skirt having an end portion to be arranged over the upper rim of the container. A peripheral locking rim is integrally formed on the end portion of the peripheral skirt. The locking rim has a proximal end hingedly connected to the peripheral skirt and allowing the peripheral locking rim to be folded inwardly towards an inner surface of the end portion, such that, when the locking rim is in the folded state, a distal end thereof can move beyond and engage under a peripheral ledge of the container to lock the base to the container. The end portion of the skirt has on the inner surface an engagement surface portion and a widening surface portion towards an end of the peripheral skirt.

Abstract: A self-closing dispensing valve is made of an elastic material and includes a valve head with a dispensing orifice, a circular peripheral retaining flange spaced apart from the valve head in an axial direction, and a connecting sleeve integrally connected with the valve head on one end and the retaining flange on another end. The dispensing orifice is formed by at least three slits in the valve head, where the slits converge at a centre of the valve head and are angularly evenly distributed around the centre of the valve head. The valve head includes a number of lobes, where in each of the lobes at least one of the slits is formed. Each of the lobes has a tip region on a radial outer end of the lobe, where the tip regions of the respective lobes lie approximately on an imaginary circle.

Abstract: A valve carrier ring for carrying a self-closing dispensing valve is adapted to be assembled with a closure body of a container. The valve carrier ring includes an annular seat portion including a support surface for supporting a retaining portion of the valve and a circumferential wall located radially outwards of the support surface and extending coaxially with the support surface. The circumferential wall has a preformed radial protrusion adapted to extend over the retaining portion of the valve for providing a preliminary retention of the retaining portion in the seat portion. A snap bead is formed at a radial outer side of the valve carrier ring adapted to cooperate with a means of the closure body to provide a snap connection between the valve carrier ring and the closure body. The radial protrusion is constituted by a flexible inwardly inclined extremity of the circumferential wall.

Abstract: A mould for injection moulding a closure assembly having a cap and lid includes a first and second mould part moveable with respect to each other. The lid includes a nipple made from a first material. The cap includes a dispensing passage to be sealed by the nipple and is made from a second material. The mould includes a holder adapted for receiving a pre-formed body with the nipple. This holder holds the body and nipple in place in a closure cavity for moulding the closure assembly. The holder includes a core having a recess for receiving the nipple. The holder further includes a tube part for insertion into the tubular nipple. This tube part can be connected with a suction source.