A canister for a metered dose inhaler has high and low pressure chambers for a propellant and for an inhalable drug and vaporised propellant. The low pressure chamber has an opening for a metering valve. A pressure regulating valve is between the high and low pressure chambers and provides a flow path from them. A metering valve dispenses a metered dose. The valve includes a metering valve body having a propellant metering chamber with a propellant inlet and a product metering chamber with a product inlet, and a metering valve stem with a dispensing nozzle, a propellant inlet plug and a product inlet plug. The metering valve stem moves to a dispensing position. In the dispensing position, the propellant and product metering chambers are in fluid communication with atmosphere via the dispensing nozzle of the metering valve stem such that a metered dose of product and propellant can be dispensed.

A fluid dispenser device having a dispenser member mounted on the neck of a container, with a neck gasket interposed. The dispenser member is mounted by a fastener element having a fastener portion and a compression portion. The compression portion includes a projecting profile that exerts stresses on the neck gasket. After assembly, the neck of the container generates first stresses in the neck gasket, and the projecting profile of the fastener element generates second stresses in the neck gasket, the first stresses approximately axially opposite the second stresses. The neck includes a top curved margin and defines an edge in contact with the neck gasket, the first and second stresses approximately axially opposite but radially offset, such that said first and second stresses are balanced at least in part.

Metering valve for dispensing a fluid product, having a valve body containing a metering chamber defined by a chamber insert and two annular seals, a valve seal and a chamber seal. The chamber insert has a cylindrical wall, an upper edge cooperating with the valve seal and a lower edge that cooperates with the chamber seal. A valve slides axially in the valve body between a rest position and a dispensing position, so as to selectively dispense the contents of the metering chamber, the valve being urged towards its rest position by a spring that cooperates with the valve body and with the valve. The upper edge of the chamber insert has an annular cutout formed on the radially inner side of the upper edge, so that the width of the upper edge in contact with the valve seal is always the same, whatever the width of the cylindrical wall.

Metering valve for dispensing a fluid product, having a valve body containing a metering chamber defined by a chamber insert and two annular seals, a valve seal and a chamber seal. The chamber insert has a cylindrical wall, an upper edge cooperating with the valve seal and a lower edge that cooperates with the chamber seal. A valve slides axially in the valve body between a rest position and a dispensing position, so as to selectively dispense the contents of the metering chamber, the valve being urged towards its rest position by a spring that cooperates with the valve body and with the valve. The upper edge of the chamber insert has an annular cutout formed on the radially inner side of the upper edge, so that the width of the upper edge in contact with the valve seal is always the same, whatever the width of the cylindrical wall.

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.

The present invention relates to a dispensing system for spraying a liquid/gas mixture, the system including a dispenser and a holder in which the dispenser is held, the dispenser including a container that is adapted for holding therein a liquid phase and a gas phase that is at a pressure of 2 bar or greater and is in direct contact with the liquid phase. The dispensing system may be used in a first orientation and a second orientation, wherein the ratio of liquid to gas in the sprayed mixture is different depending on the orientation of the system during spraying.

The present invention relates to a dispensing system for spraying a liquid/gas mixture, the system including a dispenser and a holder in which the dispenser is held, the dispenser including a container that is adapted for holding therein a liquid phase and a gas phase that is at a pressure of 2 bar or greater and is in direct contact with the liquid phase. The dispensing system may be used in a first orientation and a second orientation, wherein the ratio of liquid to gas in the sprayed mixture is different depending on the orientation of the system during spraying.

The controlled dosage dispensing valve is a device that may be placed atop an extraneous cylinder. It is an aim of the device to facilitate the metering and dosing chambers within a plurality of annular aperture and an upper portion of the intake channel respectively through a plurality of fuel apertures. To accomplish this, a spigot valve system, a dosing system, and a cap system are integrated onto a single apparatus that may be fitted over an external gas cylinder. Further, a return spring is disposed that may facilitate vertical reciprocating motion consequent to the consumption of fuel in the associative metering and dosing chambers. With an extraneous tool about the device that induces a downward vertical force on the valve spigot and the pressure of the fuel propagated by the extraneous fuel cylinder, the device achieves the reciprocating motion necessary to meter and dose the fuel.

The controlled dosage dispensing valve is a device that may be placed atop an extraneous cylinder. It is an aim of the device to facilitate the metering and dosing chambers within a plurality of annular aperture and an upper portion of the intake channel respectively through a plurality of fuel apertures. To accomplish this, a spigot valve system, a dosing system, and a cap system are integrated onto a single apparatus that may be fitted over an external gas cylinder. Further, a return spring is disposed that may facilitate vertical reciprocating motion consequent to the consumption of fuel in the associative metering and dosing chambers. With an extraneous tool about the device that induces a downward vertical force on the valve spigot and the pressure of the fuel propagated by the extraneous fuel cylinder, the device achieves the reciprocating motion necessary to meter and dose the fuel.