A ring for arranging around a valve body of a fluid dispenser valve mounted by a fastener capsule on a reservoir containing fluid to be dispensed. The ring includes a single piece including at least one inner portion that co-operates with the valve body, a radial flange that forms a neck gasket between the neck of the reservoir and the fastener capsule, and at least one axial recess that extends, at least in part, around the periphery of the ring, radially inwards from the radial flange, the single piece is made out of a first material that is substantially deformable; and at insert least one filler insert that fills the at least one axial recess at least in part, the at least one filler made out of a second material that is more rigid than the first material, the at least one filler insert being over-molded on the single piece.

A metering valve assembly for closing the housing of an aerosol generator includes a valve body (3) provided with a transfer chamber (31) in which is housed a valve (5) movable between a closed position and an open position, and a reservoir (4) in contact with the transfer chamber, constituted by a rigid wall (41), a flexible membrane (42), a planar peripheral edge (411) for attaching the flexible membrane and a bottom wall (413) inside the peripheral edge. A spring element (43) inside the reservoir is constituted by a curved plate having a convex face toward the flexible membrane and designed to deform toward the bottom wall (413) and to allow the flexible membrane (42) to move closer to the rigid wall when the valve is in the open position and to return to its initial shape as soon as the valve returns to the closed position.

A metering valve assembly for closing the housing of an aerosol generator includes a valve body (3) provided with a transfer chamber (31) in which is housed a valve (5) movable between a closed position and an open position, and a reservoir (4) in contact with the transfer chamber, constituted by a rigid wall (41), a flexible membrane (42), a planar peripheral edge (411) for attaching the flexible membrane and a bottom wall (413) inside the peripheral edge. A spring element (43) inside the reservoir is constituted by a curved plate having a convex face toward the flexible membrane and designed to deform toward the bottom wall (413) and to allow the flexible membrane (42) to move closer to the rigid wall when the valve is in the open position and to return to its initial shape as soon as the valve returns to the closed position.

The dosing device consists, for example, of a closure, having a closure body (1) with sealing closing means (7), which can be placed in a sealing manner on the connector. The metering means of the closure consist of just two components. There is first, seated securely in the closure body (1), a hollow cup (4) having, on the bottom side of the cup (4), a window (12) arranged in its side wall. The second component is a cap-shaped metering piston (10) having, on the upper side of the cap, a projection (5) which extends in the axial direction. This metering piston (10) with projection (5) fits into the cup (4), wherein its projection (5) covers and closes the window (12). The metering piston (10) is able to move axially in the cup (4) and its projection (5) is able to pivot to a limited degree toward the outer side of the window (12). In the pivoted-out state, it forms, together with the cup (4), an open valve which is otherwise closed.

The dosing device consists, for example, of a closure, having a closure body (1) with sealing closing means (7), which can be placed in a sealing manner on the connector. The metering means of the closure consist of just two components. There is first, seated securely in the closure body (1), a hollow cup (4) having, on the bottom side of the cup (4), a window (12) arranged in its side wall. The second component is a cap-shaped metering piston (10) having, on the upper side of the cap, a projection (5) which extends in the axial direction. This metering piston (10) with projection (5) fits into the cup (4), wherein its projection (5) covers and closes the window (12). The metering piston (10) is able to move axially in the cup (4) and its projection (5) is able to pivot to a limited degree toward the outer side of the window (12). In the pivoted-out state, it forms, together with the cup (4), an open valve which is otherwise closed.

The present invention relates to an aerosol dispensing valve system for dispensing a metered dose of a product, comprising a first aerosol valve, fluidly connected with the first reservoir, wherein the first aerosol valve comprises a first releasing stem connected with a first closure, a first outlet channel for discharging the product, a first inner seal resiliently deformed by the first releasing stem, and a first body portion defining a first cavity, wherein the first reservoir is fluidly connected with the first cavity through the supply channel, and the first cavity is fluidly connected with a dispensing container provided with resilient means for compressing the dispensing container, wherein the dispensing container is arranged in a rigid limiting container.

The present invention relates to an aerosol dispensing valve system for dispensing a metered dose of a product, comprising a first aerosol valve, fluidly connected with the first reservoir, wherein the first aerosol valve comprises a first releasing stem connected with a first closure, a first outlet channel for discharging the product, a first inner seal resiliently deformed by the first releasing stem, and a first body portion defining a first cavity, wherein the first reservoir is fluidly connected with the first cavity through the supply channel, and the first cavity is fluidly connected with a dispensing container provided with resilient means for compressing the dispensing container, wherein the dispensing container is arranged in a rigid limiting container.

A metering valve includes: a high-pressure partition wall to isolate a storage region from an atmospheric pressure space; an internal partition wall arranged inside the high-pressure partition wall and forming a metering chamber partitioned from the storage region; a stem linearly movably supported and biased to be positioned at an origin position; a first seal hole penetrating the high-pressure partition wall to extend over the atmospheric pressure space and the metering chamber with a first seal portion linearly movably supporting a first intermediate portion; a second seal hole penetrating the internal partition wall to extend over the metering chamber and the storage region with a second seal portion linearly movably supporting a second intermediate portion; and a starting-end-side stem internal flow path formed inside the stem and extending from a starting end of the stem to the second intermediate portion, the starting end being always positioned in the storage region.

A gas dosing apparatus is provided that includes an inlet configured to receive gas, and a directional control valve connected to the inlet and having a first position and a second position. The gas dosing apparatus also includes a fixed volume reservoir connected to the directional control valve and receiving gas from the inlet, via the directional control valve, while the directional control valve is in the first position. The gas dosing apparatus further includes an outlet connected to the directional control valve and outputting a gas dose received from the fixed volume reservoir, via the directional control valve, while the directional control valve is in the second position.

A high flow valve for use in conjunction with a compressed gas, an aerosol or in bag-on-valve applications, and particularly to a valve having a housing that is supported by a mounting cup for a product container or can, and communicates with a product or product containment bag inside the can. A radial opening or orifice of the valve is positioned closer to a lower seal of the valve stem, rather than an upper seal or mounting cup gasket, to facilitate an increased flow rate for dispensing the product from the container and the valve.