Abstract: An articulated structure to connect a cover to a support, which may be installed on a container or is formed from a single piece with an opening section of the container, comprising an articulated joint to guide the cover between a closed position and an open position with a pivot point situated on the outer side of the cover and/or the support, and an elastomer spring part, which grips the outer side of the cover as well as the support and is prestressed at least in the closed position of the cover under tension, characterized in that a force application point of the elastomer spring part to the cover and/or to the support at least in the closed position of the cover is displaced to the outside beyond the pivot point of the articulated joint.

Abstract: A fluid dispenser head for associating with a fluid reservoir (1), the head having: a stationary base (2) formed by, or for mounting on, the reservoir; a rotary actuator element (3) mounted in rotary manner on the base (2) so as to turn about an axis of rotation between two extreme abutment positions; and a dispenser orifice (30) that can be closed selectively by turning the element on the base. The two extreme abutment positions define two open positions of the dispenser orifice separated by at least one position in which the dispenser orifice is closed. The dispenser orifice (30) is situated on the axis of rotation of the element on the base.

Abstract: An articulated structure to connect a cover to a support, which may be installed on a container or is formed from a single piece with an opening section of the container, comprising an articulated joint to guide the cover between a closed position and an open position with a pivot point situated on the outer side of the cover and/or the support, and an elastomer spring part, which grips the outer side of the cover as well as the support and is prestressed at least in the closed position of the cover under tension, characterized in that a force application point of the elastomer spring part to the cover and/or to the support at least in the closed position of the cover is displaced to the outside beyond the pivot point of the articulated joint.

Abstract: A fluid dispenser head for associating with a fluid reservoir (1), said head comprising: a stationary base (2) formed by, or for mounting on, said reservoir; a rotary actuator element (3) mounted in rotary manner on the base (2) so as to turn about an axis of rotation between two extreme abutment positions; and a dispenser orifice (30) that can be closed selectively by turning the element on the base, the dispenser head being characterized in that the two extreme abutment positions define two open positions of the dispenser orifice separated by at least one position in which the dispenser orifice is closed, and in that the dispenser orifice (30) is situated on the axis of rotation of the element on the base.

Abstract: A closure device for mounting on an opening of a receptacle containing a fluid, said device comprising: a base (1) comprising fastener means (12) for fastening the base onto the opening of the receptacle, said base defining a fluid-dispensing orifice (11) through which the fluid contained in the receptacle can be dispensed; and an openable cap (2) for mounting on the base (1), said cap including closure means (210) for closing the dispenser orifice (11) of the base (1); the device further comprising first-use indicator means (25) for making it easy to see whether the cap (2) has already been withdrawn from the base (1), the device being characterized in that said indicator means comprise a visual indicator member (25) that is displaceable between an initial position that guarantees that the cap has not already been opened, and a final position that indicates that the cap has already been opened, said indicator member (25) reaching its final position when the cap (2) is put back into place on its base (1)